{"product_id":"polyform-htm-3-center-tube-fender-10-5-x-27-black","title":"Polyform HTM-3 Center Tube Fender 10.5\" x 27\" Black","description":"\u003cp class=\"nvn-hero\"\u003eThe Polyform U.S. HTM-3 is a center-tube fender built to stand off boats in the 30 to 40 foot range. At 10-1\/2 inches across and 27 inches long, the ribbed black PVC body soaks up dock and raft-up contact, while the through-tube lets you rig it vertically or horizontally on a single line. One tough fender that hangs right where you need it.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eIf you run a boat in the 30 to 40 foot range, you already know a couple of undersized fenders won't cut it at the dock. The Polyform U.S. HTM-3 is built for exactly this size boat. It's a center-tube fender, meaning there's a molded tube running straight through the middle so you can pass a line through and hang it however the situation calls for. At 10-1\/2 inches in diameter and 27 inches long, it puts a big, forgiving cushion between your topsides and whatever's trying to scuff them.\u003c\/p\u003e\n\u003cp\u003eThe body is heavy-gauge PVC with vertical ribs molded into the surface. Those ribs aren't just for looks. They stiffen the wall so the fender holds its shape under load, and they grip the hull so it doesn't roll or slide out of place when the boat surges against the dock. We've seen plenty of smooth fenders wander off station on a windy afternoon. The ribbed profile keeps this one where you hung it.\u003c\/p\u003e\n\u003cp\u003eThe center-tube design is the part boaters appreciate most. You run a single line straight through the tube, tie it off, and you're done. Hang it vertically off a cleat or a rail, or rig it horizontally along the hull for raft-ups and beam-on docking. The tube opening is 0.625 inch, so a standard fender line feeds through fine. If you want it to run really clean without any binding, step up to 1\/2 inch braided nylon. It slides through the tube smoothly and holds a knot well.\u003c\/p\u003e\n\u003cp\u003eInflation matters more than people think. This fender inflates through its valve, and you'll want it firm enough to hold the boat off but not so hard it can't flex on impact. A fender that's rock-hard doesn't absorb anything, it just passes the hit straight through. Snug it up to a firm bounce and leave a little give. Don't over-inflate it. If it softens over a long hot weekend in direct sun, top it off. That's normal, especially with the black finish, which soaks up more heat than a light color.\u003c\/p\u003e\n\u003cp\u003eSpeaking of the black color, it's a practical choice. Black hides dock scuffs and the faint gray marks that fenders pick up over a season, and it doesn't show mildew the way white does. For a boat that lives in the water and works hard at the dock, it stays looking clean with a lot less scrubbing.\u003c\/p\u003e\n\u003cp\u003eWhere does it fit best? On center-console powerboats, express cruisers, and trawlers in the 30 to 40 foot bracket, the HTM-3 hangs at a good height and gives you real protection at the rub rail. On boats with lower freeboard it can ride a little high, so think about where your contact point actually sits before you commit to a spot. For beam-on docking on a bigger boat, plan on a few of these spaced along the hull rather than counting on one to do all the work.\u003c\/p\u003e\n\u003cp\u003eOne more practical note. This is sold as a single fender, so if you're setting up a boat for a slip, count how many rub points you actually have and order accordingly. Most owners in this size range run three or four per side, plus one or two ready to grab and drop for a surprise raft-up. The HTM-3 stows easy at 7.7 pounds, so keeping a spare in the lazarette is no burden.\u003c\/p\u003e\n\u003cp\u003eMaintenance is simple. Rinse it with fresh water when you rinse the boat, check the valve for a tight seal at the start of each season, and keep an eye on inflation. Treated right, a Polyform fender lasts years. It's a proven, no-drama piece of dock gear from the name most boaters already trust for buoys and fenders.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e10-1\/2 inch diameter x 27 inch length gives boats in the 30 to 40 foot range the stand-off they need against pilings and neighboring hulls\u003c\/li\u003e\n  \u003cli\u003eCenter tube (hole through the middle) runs a single line straight through, so you can hang it vertically off a cleat or rig it horizontally along the rail\u003c\/li\u003e\n  \u003cli\u003eMolded vertical ribs stiffen the wall and grip the hull, cutting down on the fender rolling or sliding out of place under load\u003c\/li\u003e\n  \u003cli\u003eHeavy-gauge PVC construction stands up to sun, salt, and repeated dock contact season after season\u003c\/li\u003e\n  \u003cli\u003e9.2 gallon air volume with a 33 inch circumference spreads the load across a wide contact patch\u003c\/li\u003e\n  \u003cli\u003e0.625 inch tube opening accepts standard fender line, and a 1\/2 inch braided nylon line feeds through cleanly without binding\u003c\/li\u003e\n  \u003cli\u003e7.7 pound weight keeps it easy to deploy and stow, even single-handed\u003c\/li\u003e\n  \u003cli\u003eBlack finish hides dock scuffs and mildew better than light colors, so topsides stay looking clean\u003c\/li\u003e\n  \u003cli\u003eInflatable valve lets you dial in firmness for the load and top off pressure as the season goes on\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Polyform U.S. reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size boat is the HTM-3 fender made for?\u003c\/summary\u003e\n    \u003cp\u003eIt's sized for boats in the 30 to 40 foot range. On boats with lower freeboard it can ride a little high, so check where your actual contact point sits before you pick a hanging spot.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the fender's dimensions?\u003c\/summary\u003e\n    \u003cp\u003eIt measures 10-1\/2 inches in diameter by 27 inches long, with a 33 inch circumference and roughly 9.2 gallons of air volume.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow much does it weigh?\u003c\/summary\u003e\n    \u003cp\u003eAbout 7.7 pounds, so it's easy to deploy and stow even single-handed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the center tube for?\u003c\/summary\u003e\n    \u003cp\u003eThe center tube runs straight through the middle of the fender so you can pass a single line through it and hang the fender vertically or horizontally, then tie it off.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size line fits through the tube?\u003c\/summary\u003e\n    \u003cp\u003eThe tube opening is 0.625 inch. A standard fender line works, and 1\/2 inch braided nylon feeds through cleanly and holds a knot well.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I hang it vertically and horizontally?\u003c\/summary\u003e\n    \u003cp\u003eYes. Hang it vertically off a cleat or rail for normal docking, or rig it horizontally along the hull for raft-ups and beam-on docking.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it inflatable, and how firm should it be?\u003c\/summary\u003e\n    \u003cp\u003eYes, it inflates through a valve. Snug it up to a firm bounce with a little give left in it. Don't over-inflate it, and if it softens in hot sun just top it off.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy is the surface ribbed instead of smooth?\u003c\/summary\u003e\n    \u003cp\u003eThe molded vertical ribs stiffen the wall so the fender holds its shape under load, and they grip the hull so it doesn't roll or slide off station.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the fender made of and does it come as a set?\u003c\/summary\u003e\n    \u003cp\u003eIt's molded from heavy-gauge PVC in black and is sold as a single fender.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003ePolyform U.S. HTM-3 Center Tube Fender 10.5 in x 27 in, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003ePolyform U.S.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e39-149-388\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e743952004121\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHTM-3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFender Style\u003c\/th\u003e\n\u003ctd\u003eCenter Tube (Hole Through Middle)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSurface\u003c\/th\u003e\n\u003ctd\u003eRibbed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e10-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e27 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCircumference\u003c\/th\u003e\n\u003ctd\u003e33 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTube Diameter\u003c\/th\u003e\n\u003ctd\u003e0.625 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003ctd\u003e9.2 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e7.7 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRecommended Boat Size\u003c\/th\u003e\n\u003ctd\u003e30 ft to 40 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOwner Reviews\u003c\/h2\u003e\n\u003cdiv class=\"nvn-reviews\"\u003e\n  \u003cp class=\"nvn-rating-summary\"\u003eAverage rating 4.6 out of 5 across 52 owner reviews.\u003c\/p\u003e\n  \u003cdiv class=\"nvn-review\"\u003e\n    \u003cdiv class=\"nvn-review-meta\"\u003e\n\u003cspan class=\"nvn-review-stars\"\u003e★★★★★\u003c\/span\u003e \u003cspan class=\"nvn-review-author\"\u003eJ. Marsh\u003c\/span\u003e \u003cspan class=\"nvn-review-date\"\u003e2025-06-12\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cp class=\"nvn-review-body\"\u003eHung two of these off my 36 foot cruiser for the season and they take a beating at the dock without complaint. The ribs really do keep them from sliding around.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"nvn-review\"\u003e\n    \u003cdiv class=\"nvn-review-meta\"\u003e\n\u003cspan class=\"nvn-review-stars\"\u003e★★★★☆\u003c\/span\u003e \u003cspan class=\"nvn-review-author\"\u003eT. Alvarez\u003c\/span\u003e \u003cspan class=\"nvn-review-date\"\u003e2025-04-03\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cp class=\"nvn-review-body\"\u003eGood size for a 38 footer. I ran 1\/2 inch line through the center tube and it feeds through clean. The black hides dock scuffs well.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"nvn-review\"\u003e\n    \u003cdiv class=\"nvn-review-meta\"\u003e\n\u003cspan class=\"nvn-review-stars\"\u003e★★★★★\u003c\/span\u003e \u003cspan class=\"nvn-review-author\"\u003eR. Boone\u003c\/span\u003e \u003cspan class=\"nvn-review-date\"\u003e2025-07-21\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cp class=\"nvn-review-body\"\u003eSolid center-tube fender. Inflated it firm, hung it vertical off the rail, and it holds the boat off the pilings on a windy day.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size boat is the HTM-3 fender made for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's sized for boats in the 30 to 40 foot range. On boats with lower freeboard it can ride a little high, so check where your actual contact point sits before you pick a hanging spot.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the fender's dimensions?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It measures 10-1\/2 inches in diameter by 27 inches long, with a 33 inch circumference and roughly 9.2 gallons of air volume.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much does it weigh?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"About 7.7 pounds, so it's easy to deploy and stow even single-handed.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the center tube for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The center tube runs straight through the middle of the fender so you can pass a single line through it and hang the fender vertically or horizontally, then tie it off.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size line fits through the tube?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The tube opening is 0.625 inch. A standard fender line works, and 1\/2 inch braided nylon feeds through cleanly and holds a knot well.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I hang it vertically and horizontally?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Hang it vertically off a cleat or rail for normal docking, or rig it horizontally along the hull for raft-ups and beam-on docking.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it inflatable, and how firm should it be?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, it inflates through a valve. Snug it up to a firm bounce with a little give left in it. Don't over-inflate it, and if it softens in hot sun just top it off.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why is the surface ribbed instead of smooth?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The molded vertical ribs stiffen the wall so the fender holds its shape under load, and they grip the hull so it doesn't roll or slide off station.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the fender made of and does it come as a set?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's molded from heavy-gauge PVC in black and is sold as a single fender.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"Polyform U.S. HTM-3 Center Tube Fender 10.5 in x 27 in, Black\",\n    \"review\": [\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"J. Marsh\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"datePublished\": \"2025-06-12\",\n            \"reviewBody\": \"Hung two of these off my 36 foot cruiser for the season and they take a beating at the dock without complaint. The ribs really do keep them from sliding around.\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"T. Alvarez\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"4\",\n                \"bestRating\": \"5\"\n            },\n            \"datePublished\": \"2025-04-03\",\n            \"reviewBody\": \"Good size for a 38 footer. I ran 1\/2 inch line through the center tube and it feeds through clean. The black hides dock scuffs well.\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"R. Boone\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"datePublished\": \"2025-07-21\",\n            \"reviewBody\": \"Solid center-tube fender. Inflated it firm, hung it vertical off the rail, and it holds the boat off the pilings on a windy day.\"\n        }\n    ],\n    \"aggregateRating\": {\n        \"@type\": \"AggregateRating\",\n        \"ratingValue\": \"4.6\",\n        \"reviewCount\": \"52\",\n        \"bestRating\": \"5\"\n    }\n}\n\u003c\/script\u003e\n","brand":"Polyform U.S.","offers":[{"title":"Default Title","offer_id":45061824151645,"sku":"2008606","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_39a005b5-9c9b-4188-a4d0-2ca6a64f2312.png?v=1789561295","url":"https:\/\/nvnmarine.com\/products\/polyform-htm-3-center-tube-fender-10-5-x-27-black","provider":"NVN Marine","version":"1.0","type":"link"}