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Over 50 years of Trusted Marine Service

Circuit Breakers

Marine circuit breakers for electrical protection. Match amperage, voltage and circuit requirements.

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Blue Sea Systems 8017 DC Analog Ammeter - 0-100A With Shunt

Original price $169.49 - Original price $169.49
Original price
$169.49
$169.49 - $169.49
Current price $169.49
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Meters with backlighting for low light conditions. Can be either surface or panel mount. (Separate 12V or 24V connection required for lighting) Amm...

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Original price $169.49 - Original price $169.49
Original price
$169.49
$169.49 - $169.49
Current price $169.49
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Terminal Block Ind 12 Cir 30A

Original price $36.89 - Original price $36.89
Original price
$36.89
$36.89 - $36.89
Current price $36.89
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $36.89 - Original price $36.89
Original price
$36.89
$36.89 - $36.89
Current price $36.89
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Cable Cap Stud Red 1X.500

Original price $13.69 - Original price $13.69
Original price
$13.69
$13.69 - $13.69
Current price $13.69
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For stud type connectors on alternators, starters, windlasses and other High amperage devices.

Original price $13.69 - Original price $13.69
Original price
$13.69
$13.69 - $13.69
Current price $13.69
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Terminal Block Ind 2 Cir 30 A

Original price $14.69 - Original price $14.69
Original price
$14.69
$14.69 - $14.69
Current price $14.69
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $14.69 - Original price $14.69
Original price
$14.69
$14.69 - $14.69
Current price $14.69
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Cablecap Stud Black 1.25 X.700

Original price $14.49 - Original price $14.49
Original price
$14.49
$14.49 - $14.49
Current price $14.49
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For stud type connectors on alternators, starters, windlasses and other High amperage devices.

Original price $14.49 - Original price $14.49
Original price
$14.49
$14.49 - $14.49
Current price $14.49
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Panelback 5-1/4" x 3-3/4" x 3"

Original price $76.49 - Original price $76.49
Original price
$76.49
$76.49 - $76.49
Current price $76.49
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Provide electrical insulation for exposed panel backs and mechanical protection for panel backs protruding into lockers.Made of lightweight materia...

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Original price $76.49 - Original price $76.49
Original price
$76.49
$76.49 - $76.49
Current price $76.49
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Cable Cap Stud Black 2/Cd

Original price $10.19 - Original price $10.19
Original price
$10.19
$10.19 - $10.19
Current price $10.19
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For stud type connectors on alternators, starters, windlasses and other High amperage devices.

Original price $10.19 - Original price $10.19
Original price
$10.19
$10.19 - $10.19
Current price $10.19
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Terminal Block Ind 10 Cir 30

Original price $26.79 - Original price $26.79
Original price
$26.79
$26.79 - $26.79
Current price $26.79
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $26.79 - Original price $26.79
Original price
$26.79
$26.79 - $26.79
Current price $26.79
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Terminal Block Ind 6 Cir 30 A

Original price $21.29 - Original price $21.29
Original price
$21.29
$21.29 - $21.29
Current price $21.29
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $21.29 - Original price $21.29
Original price
$21.29
$21.29 - $21.29
Current price $21.29
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Blue Sea Systems 4308 WeatherDeck 12V DC 8 Position Waterproof Fuse Panel, Gray

Original price $348.82 - Original price $348.82
Original price
$348.82
$348.82 - $348.82
Current price $348.82
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Water resistant to IP67. Constructed from corrosion resistant materials. Concealed mounting screw holes. Integrated switch guards prevent accidenta...

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Original price $348.82 - Original price $348.82
Original price
$348.82
$348.82 - $348.82
Current price $348.82
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Terminal Block Ind 10 Cir 20A

Original price $24.29 - Original price $24.29
Original price
$24.29
$24.29 - $24.29
Current price $24.29
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $24.29 - Original price $24.29
Original price
$24.29
$24.29 - $24.29
Current price $24.29
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Blue Sea Systems 4306 WeatherDeck 12V DC 6 Position Waterproof Fuse Panel, Gray

Original price $247.49 - Original price $247.49
Original price
$247.49
$247.49 - $247.49
Current price $247.49
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Water resistant to IP67. Constructed from corrosion resistant materials. Concealed mounting screw holes. Integrated switch guards prevent accidenta...

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Original price $247.49 - Original price $247.49
Original price
$247.49
$247.49 - $247.49
Current price $247.49
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Terminal Block Ind 4 Cir 30A

Original price $16.19 - Original price $16.19
Original price
$16.19
$16.19 - $16.19
Current price $16.19
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $16.19 - Original price $16.19
Original price
$16.19
$16.19 - $16.19
Current price $16.19
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Cable Cap Stud Res .700X.300

Original price $10.19 - Original price $10.19
Original price
$10.19
$10.19 - $10.19
Current price $10.19
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For stud type connectors on alternators, starters, windlasses and other High amperage devices.

Original price $10.19 - Original price $10.19
Original price
$10.19
$10.19 - $10.19
Current price $10.19
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Terminal Block Ind 6 Cir 20 A

Original price $17.59 - Original price $17.59
Original price
$17.59
$17.59 - $17.59
Current price $17.59
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $17.59 - Original price $17.59
Original price
$17.59
$17.59 - $17.59
Current price $17.59
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Terminal Block

Original price $13.99 - Original price $13.99
Original price
$13.99
$13.99 - $13.99
Current price $13.99
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $13.99 - Original price $13.99
Original price
$13.99
$13.99 - $13.99
Current price $13.99
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Weather Deck Fuse Panel 4 Pos Gray

Original price $177.19 - Original price $177.19
Original price
$177.19
$177.19 - $177.19
Current price $177.19
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Water resistant to IP67. Constructed from corrosion resistant materials. Concealed mounting screw holes. Integrated switch guards prevent accidenta...

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Original price $177.19 - Original price $177.19
Original price
$177.19
$177.19 - $177.19
Current price $177.19
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Cablecap Stud Black.475X.130

Original price $8.79 - Original price $8.79
Original price
$8.79
$8.79 - $8.79
Current price $8.79
Sold out

For stud type connectors on alternators, starters, windlasses and other High amperage devices.

Original price $8.79 - Original price $8.79
Original price
$8.79
$8.79 - $8.79
Current price $8.79
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Blue Sea Systems Dual Entry CableCaps — Up to 2/0 AWG

Original price $20.29 - Original price $23.19
Original price
$20.29 - $23.19
$20.29 - $23.19
Current price $20.29
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Dual Entry CableCaps for Blue Sea Dual PowerPost cable connector installations. The two cable entries accommodate cable up to 2/0 AWG, and the top ...

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Original price $20.29 - Original price $23.19
Original price
$20.29 - $23.19
$20.29 - $23.19
Current price $20.29
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Cablecap Stud Red.475X.130 3Cd

Original price $8.79 - Original price $8.79
Original price
$8.79
$8.79 - $8.79
Current price $8.79
Sold out

For stud type connectors on alternators, starters, windlasses and other High amperage devices.

Original price $8.79 - Original price $8.79
Original price
$8.79
$8.79 - $8.79
Current price $8.79
Sold out

Blue Sea Systems 4302 WeatherDeck 12V DC 2 Position Waterproof Fuse Panel, Gray

Original price $133.99 - Original price $133.99
Original price
$133.99
$133.99 - $133.99
Current price $133.99
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Water resistant to IP67. Constructed from corrosion resistant materials. Concealed mounting screw holes. Integrated switch guards prevent accidenta...

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Original price $133.99 - Original price $133.99
Original price
$133.99
$133.99 - $133.99
Current price $133.99
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Terminal Block Ind 8 Cir 20 A

Original price $18.29 - Original price $18.29
Original price
$18.29
$18.29 - $18.29
Current price $18.29
Sold out

A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $18.29 - Original price $18.29
Original price
$18.29
$18.29 - $18.29
Current price $18.29
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Breaker Enclosure

Original price $138.69 - Original price $138.69
Original price
$138.69
$138.69 - $138.69
Current price $138.69
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Enclosure, strain reliefs included for secure installation of circuit breakers.Accepts A-series toggle and A and C-series flat rocker circuit break...

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Original price $138.69 - Original price $138.69
Original price
$138.69
$138.69 - $138.69
Current price $138.69
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Blue Sea Systems 4004 Powerpost Insulator

Original price $10.09 - Original price $10.09
Original price
$10.09
$10.09 - $10.09
Current price $10.09
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Provides electrical insulation for single studs and large cables.Included with 2001, 2002, 2003, 2101, 2102, 2103, and 2019.

Original price $10.09 - Original price $10.09
Original price
$10.09
$10.09 - $10.09
Current price $10.09
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Blue Sea 4218 Waterproof Square Format Label Kit, 30 Label DC Set

Original price $28.09 - Original price $28.09
Original price
$28.09
$28.09 - $28.09
Current price $28.09
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Use on and included with WeatherDeck Waterproof Panels Also used on Battery Management Panels & 360 Panel System Reinforced, weatherproof mate...

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Original price $28.09 - Original price $28.09
Original price
$28.09
$28.09 - $28.09
Current price $28.09
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Mini Bus 5X8-32 Common w/Cover

Original price $54.79 - Original price $54.79
Original price
$54.79
$54.79 - $54.79
Current price $54.79
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Great for limited space applications in electronics cabinets and under dashboards. Features tin-plated copper bus and stainless steel hardware. Con...

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Original price $54.79 - Original price $54.79
Original price
$54.79
$54.79 - $54.79
Current price $54.79
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Blue Sea 4217 Waterproof Square Format Label Kit, 120 Label DC Set

Original price $53.69 - Original price $53.69
Original price
$53.69
$53.69 - $53.69
Current price $53.69
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Use on and included with WeatherDeck Waterproof Panels Also used on Battery Management Panels & 360 Panel System Reinforced, weatherproof mate...

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Original price $53.69 - Original price $53.69
Original price
$53.69
$53.69 - $53.69
Current price $53.69
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Ind. Connector 15 Amp

Original price $13.19 - Original price $13.19
Original price
$13.19
$13.19 - $13.19
Current price $13.19
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A closed back design completely insulates power from the mounting surface. Each screw pair is one isolated circuit. Optional jumpers allow creation...

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Original price $13.19 - Original price $13.19
Original price
$13.19
$13.19 - $13.19
Current price $13.19
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Mini Bus 4X10-24 Stud w/Cover

Original price $62.79 - Original price $62.79
Original price
$62.79
$62.79 - $62.79
Current price $62.79
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Great for limited space applications in electronics cabinets and under dashboards. Features tin-plated copper bus and stainless steel hardware. Con...

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Original price $62.79 - Original price $62.79
Original price
$62.79
$62.79 - $62.79
Current price $62.79
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Power Post 5/16"

Original price $27.99 - Original price $27.99
Original price
$27.99
$27.99 - $27.99
Current price $27.99
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Connect high amperage cables securely. Includes insulator caps. 48 volts DC maximum.

Original price $27.99 - Original price $27.99
Original price
$27.99
$27.99 - $27.99
Current price $27.99
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Power Post #10

Original price $19.19 - Original price $19.19
Original price
$19.19
$19.19 - $19.19
Current price $19.19
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Connect high amperage cables securely. Includes insulator caps. 48 volts DC maximum.

Original price $19.19 - Original price $19.19
Original price
$19.19
$19.19 - $19.19
Current price $19.19
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Minibus 4X10-24 Stud Common

Original price $50.69 - Original price $50.69
Original price
$50.69
$50.69 - $50.69
Current price $50.69
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Great for limited space applications in electronics cabinets and under dashboards. Features tin-plated copper bus and stainless steel hardware. Con...

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Original price $50.69 - Original price $50.69
Original price
$50.69
$50.69 - $50.69
Current price $50.69
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Power Post 1/4"

Original price $19.19 - Original price $19.19
Original price
$19.19
$19.19 - $19.19
Current price $19.19
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Connect high amperage cables securely. Includes insulator caps. 48 volts DC maximum. Posts have no amperage rating because amperage flows between t...

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Original price $19.19 - Original price $19.19
Original price
$19.19
$19.19 - $19.19
Current price $19.19
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Dual Bus Plus 5/16" Stud

Original price $65.69 - Original price $65.69
Original price
$65.69
$65.69 - $65.69
Current price $65.69
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Combines negative and positive busses on one block, clear lexan lid snaps on to meet CG and ABYC insulation requirements.Features tin-plated copper...

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Original price $65.69 - Original price $65.69
Original price
$65.69
$65.69 - $65.69
Current price $65.69
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Powerpost Dual 5/16 X 3/8 Stud

Original price $43.39 - Original price $43.39
Original price
$43.39
$43.39 - $43.39
Current price $43.39
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Connect high amperage cables securely. Includes insulator caps. 48 volts DC maximum.

Original price $43.39 - Original price $43.39
Original price
$43.39
$43.39 - $43.39
Current price $43.39
Sold out

Power Post 3/8"

Original price $27.99 - Original price $27.99
Original price
$27.99
$27.99 - $27.99
Current price $27.99
Sold out

Connect high amperage cables securely. Includes insulator caps. 48 volts DC maximum. Posts have no amperage rating because amperage flows between t...

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Original price $27.99 - Original price $27.99
Original price
$27.99
$27.99 - $27.99
Current price $27.99
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Terminal Feed Thru 3/8 Sm Black

Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99
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Ideal for passing high current cables through hulls, decks and bulkheads where watertight or vapor proof integrity must be maintained. Feed-Through...

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Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99
Sold out

Blue Sea 4215 Waterproof Square Format Label Kit, 60 Label DC Set

Original price $28.09 - Original price $28.09
Original price
$28.09
$28.09 - $28.09
Current price $28.09
Sold out

Use on and included with WeatherDeck Waterproof Panels Also used on Battery Management Panels & 360 Panel System Reinforced, weatherproof mate...

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Original price $28.09 - Original price $28.09
Original price
$28.09
$28.09 - $28.09
Current price $28.09
Sold out

Power Post 1/4"

Original price $29.69 - Original price $29.69
Original price
$29.69
$29.69 - $29.69
Current price $29.69
Sold out

Connect high amperage cables securely. Includes insulator caps. 48 volts DC maximum.

Original price $29.69 - Original price $29.69
Original price
$29.69
$29.69 - $29.69
Current price $29.69
Sold out

Minibus 5X8-32 Common Bus

Original price $46.89 - Original price $46.89
Original price
$46.89
$46.89 - $46.89
Current price $46.89
Sold out

Great for limited space applications in electronics cabinets and under dashboards. Features tin-plated copper bus and stainless steel hardware. Con...

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Original price $46.89 - Original price $46.89
Original price
$46.89
$46.89 - $46.89
Current price $46.89
Sold out

Dual Bus Plus 1/4" Stud

Original price $56.99 - Original price $56.99
Original price
$56.99
$56.99 - $56.99
Current price $56.99
Sold out

Combines negative and positive busses on one block, clear lexan lid snaps on to meet CG and ABYC insulation requirements.Features tin-plated copper...

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Original price $56.99 - Original price $56.99
Original price
$56.99
$56.99 - $56.99
Current price $56.99
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Terminal Feed Thru 3/8 Sm Red

Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99
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Ideal for passing high current cables through hulls, decks and bulkheads where watertight or vapor proof integrity must be maintained. Feed-Through...

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Original price $53.99 - Original price $53.99
Original price
$53.99
$53.99 - $53.99
Current price $53.99
Sold out

Blue Sea 4116 360 Panel Plug

Original price $11.39 - Original price $11.39
Original price
$11.39
$11.39 - $11.39
Current price $11.39
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Fills empty flat rocker apertures in 360 Panels.

Original price $11.39 - Original price $11.39
Original price
$11.39
$11.39 - $11.39
Current price $11.39
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Blue Sea Systems 2718 Cover for 2105 & 2126

Original price $67.89 - Original price $67.89
Original price
$67.89
$67.89 - $67.89
Current price $67.89
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Designed for heavy duty positive or negative busing. Features tin-plated copper bus and stainless steel hardware. 300V AC / 48V DC maximum voltage....

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Original price $67.89 - Original price $67.89
Original price
$67.89
$67.89 - $67.89
Current price $67.89
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Terminal Feed Thru 5/16 Sm Black

Original price $48.99 - Original price $48.99
Original price
$48.99
$48.99 - $48.99
Current price $48.99
Sold out

Ideal for passing high current cables through hulls, decks and bulkheads where watertight or vapor proof integrity must be maintained. Feed-Through...

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Original price $48.99 - Original price $48.99
Original price
$48.99
$48.99 - $48.99
Current price $48.99
Sold out

Weatherdeck Breaker Panel 12VAC 6 Pos Gray

Original price $269.29 - Original price $269.29
Original price
$269.29
$269.29 - $269.29
Current price $269.29
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Designed for flybridge and open cockpit applications. For 12 or 24 V systems. Constructed from corrosion resistant materials, the panel front withs...

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Original price $269.29 - Original price $269.29
Original price
$269.29
$269.29 - $269.29
Current price $269.29
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Dualbus Common +/- 10 Cir

Original price $76.19 - Original price $76.19
Original price
$76.19
$76.19 - $76.19
Current price $76.19
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Combine negative and positive buses on one block. Features tin-plated copper bus and stainless steel hardware. Continuous amperage of 100 amps. Max...

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Original price $76.19 - Original price $76.19
Original price
$76.19
$76.19 - $76.19
Current price $76.19
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Terminal Feed Thru 5/16 Sm Red

Original price $48.99 - Original price $48.99
Original price
$48.99
$48.99 - $48.99
Current price $48.99
Sold out

Ideal for passing high current cables through hulls, decks and bulkheads where watertight or vapor proof integrity must be maintained. Feed-Through...

View full details
Original price $48.99 - Original price $48.99
Original price
$48.99
$48.99 - $48.99
Current price $48.99
Sold out