Sea-Dog 316 Stainless Steel Tube Mount Antenna Base – 1" OD | SED-329520-1
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sea-Dog 316 Stainless Steel Tube Mount Antenna Base – 1" OD
Mount your VHF, AIS, or GPS antenna directly to any 1" OD stainless steel tubing with this investment cast 316 stainless steel tube mount antenna base from Sea-Dog. Designed for rails, arches, T-tops, and custom tube frameworks, it gives you a solid, corrosion-proof antenna mounting point wherever you have 1" tubing — no deck drilling required.
The 316 stainless construction handles offshore saltwater exposure without staining or corroding, and the investment cast finish delivers a clean, professional look that holds up over years of use. A versatile base for builders, riggers, and boaters who want antenna placement flexibility without compromising on quality.
Key Features
- Investment cast 316 stainless steel – offshore-grade corrosion resistance
- Mounts to any 1" OD stainless steel tubing – rails, arches, T-tops, custom frameworks
- No deck penetration required
- Standard antenna thread for broad antenna compatibility
- Clean, professional finish
- MPN: 329520-1
Parts Desk Insights
Best Use Case: This base is the right choice when you want to mount an antenna on a T-top, hardtop frame, arch, or stainless rail without drilling into the deck or cabin top. It's especially popular on center consoles and sportfishers where the T-top tubing provides a natural, elevated mounting point that puts the antenna well above the helm. If you need to raise the antenna further above the tube, pair this base with a Sea-Dog 316 SS Antenna Mount Extension – 12" or the Sea-Dog 316 SS Antenna Mount Extension – 24". For deck or cabin top installations where you do want a fixed base, see the Sea-Dog Stainless Steel Deck Mount Antenna Base or the Sea-Dog Heavy Duty Stainless Steel Deck Mount Antenna Mount. On longer antenna runs, add a Sea-Dog Nylon Antenna Stand-Off Bracket to reduce flex at speed.
Compatibility Note: This base is designed for 1" OD tubing. Verify your rail or arch tube diameter before ordering — tube diameters vary across manufacturers and are not always 1".
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.