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Celebrating over 50 years of Trusted Marine Service
Over 50 years of Trusted Marine Service

Polyform 10-377-440 Center Tube HTM Series Fender, 6.3" x 15.5", Blue

Original price $87.59 - Original price $87.59
Original price
$87.59
$87.59 - $87.59
Current price $87.59
Item locally warehoused

Free returns on all eligible orders

You have 30 days to request a return. All sale items are final sale.

The Polyform 10-377-440 Center Tube HTM Series Fender provides dependable, medium-duty protection for mooring and docking. Its HTM “hole-through-middle” center tube design lets it be arranged for vertical or horizontal hanging, while molded ribs and reinforced tube ends help resist abrasion and wear.

Key Features

  • HTM (hole-through-middle) center tube design for flexible fender positioning (vertical or horizontal)
  • Even wall thickness for maximum strength
  • Molded in ribs for strength and abrasion resistance
  • Reinforced tube ends for added durability
  • Unique Polyform valve built for years of service
  • Designed for medium-duty applications in both permanent protected and unprotected moorings

Product Compatibility

  • Docking and mooring support
  • Medium-duty protected and unprotected moorings

Product Details

  • Brand: Polyform
  • Series: HTM Series
  • Model/Reference: 10-377-440
  • Type: Center Tube Fender (HTM / hole-through-middle)
  • Color: Blue
  • Center tube fender size: 6.3" x 15.5"
  • SKU: 218-HTM1B
  • Valve: Unique Polyform valve (service-ready design)
  • Weight: 1,093 grams

Parts Desk Insights

Best Use Case: A strong choice for marinas and mooring setups where you need a flexible center-tube fender that can be hung vertically or horizontally for consistent hull-to-dock protection.

Common Issues: If you’re replacing an older fender, double-check that the new fender’s diameter/length and the center-tube hanging setup match your current rigging. Also inspect the mating hardware/lines for wear so the fender can distribute loads without excessive rubbing at the ends.

Related Products & Accessories

  • Browse Fender Accessories - Pairs well with fender lines/rigging and docking accessories to match your hanging method.
  • Browse Fenders - Explore additional sizes and Polyform fender options for your docking and mooring application.
Shipping information

In-stock and OEM parts: ship same or next business day.

Locally warehoused items: ship within 1-3 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.

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