{"product_id":"sea-dog-16-2-awg-flat-duplex-marine-wire-250-ft","title":"Sea-Dog 16\/2 AWG Flat Duplex Tinned Marine Wire, 250 ft","description":"\u003cp class=\"nvn-hero\"\u003eSea-Dog's 16\/2 flat duplex is honest marine wire for the everyday jobs: cabin lights, nav lights, instruments, and small pumps. Two 16-gauge tinned copper conductors, red and black, in a flexible PVC jacket. The 250-foot spool is enough to rewire a whole cabin, and the UL and ABYC certification keeps you square with any surveyor.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eSea-Dog's 16\/2 flat duplex is the everyday marine wire you reach for when you're rewiring cabin lights, instruments, and small accessory circuits. You get two 16-gauge stranded conductors, one red and one black, bonded side by side in a flat PVC jacket. Tinned copper runs through both conductors, and that's the detail that matters on a boat. Bare copper corrodes and goes green the first season it sees salt air. Tinned copper keeps making a clean, low-resistance connection year after year, and folks report terminals that still look good seven years down the road.\u003c\/p\u003e\n\u003cp\u003eThe 250-foot spool is sized for a real job. Most people buy this when they're pulling new runs through a whole cabin, or replacing a tired factory harness that's gone brittle and unreliable. We've seen a single roll cover all the interior lighting and instrument feeds on a 30 to 40 foot boat with plenty left over for bilge pump leads and the odd accessory circuit. Flat duplex pulls nicely through tight spaces too. Run it down a stringer, through a lazarette, or behind a headliner and it lays flat instead of fighting you the way round cable does. Just don't crank a sharp bend into it during the pull, because 16-gauge flat cable can kink if you fold it hard around a corner.\u003c\/p\u003e\n\u003cp\u003eSixteen-gauge is the right size for a lot of low-draw circuits. Think LED cabin lights, nav light runs, instrument power, small pumps, and switch-panel feeds. It's stranded, not solid, so it flexes with the boat and shrugs off constant vibration without work-hardening and cracking. The PVC insulation is rated for wet marine use and stays flexible when it's cold out. And the red and black conductor coloring keeps your polarity obvious, which saves you real time and real mistakes when you're landing a dozen circuits at a panel.\u003c\/p\u003e\n\u003cp\u003eThis wire carries UL and ABYC certification, and that's not just a sticker on the spool. If you've ever been through an insurance survey, you know the surveyor is going to look hard at your wiring. Tinned, marine-rated cable that meets ABYC keeps you on the right side of that conversation. It's the standard for a reason. Salt, humidity, and constant vibration are brutal on wire, and marine-grade tinned copper is built to take all three.\u003c\/p\u003e\n\u003cp\u003eA couple of practical notes from the bench. When you strip flat duplex for ring terminals, use sharp marine strippers and take your time. The flat jacket separates cleanly between the two conductors, but a dull blade will nick the fine strands and cost you conductor. For 16 gauge, you're generally looking at circuits protected in the 10 to 15 amp range, and you'll want to watch voltage drop on longer runs. If you're feeding LED nav lights more than about 25 feet from the panel, do the drop math before you commit, and step up a gauge if the numbers come out tight. One more thing: keep PVC-jacketed wire clear of hot engine exhaust. Near a gas inboard's exhaust riser, the jacket can soften over a few seasons, so route it away from the heat or sleeve it where it has to pass close.\u003c\/p\u003e\n\u003cp\u003eIf a circuit pulls more current than 16 gauge can comfortably carry, Sea-Dog makes the same tinned duplex in heavier gauges for battery, windlass, and high-draw runs. But for the bulk of a boat's lighting and instrument wiring, 16\/2 is the workhorse you'll use the most. Buy the 250-foot roll once and you won't be running back to the store halfway through a rewire. It's the kind of wire you spec once for a project and then forget about, which is exactly what you want from something buried behind a headliner.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e16 AWG stranded tinned copper conductors resist corrosion and keep clean connections for years in salt air\u003c\/li\u003e\n  \u003cli\u003eTwo-conductor flat duplex in red and black, so polarity stays obvious when you're landing circuits at the panel\u003c\/li\u003e\n  \u003cli\u003e250-foot spool covers a full cabin rewire on a 30 to 40 foot boat with wire to spare\u003c\/li\u003e\n  \u003cli\u003ePVC insulation rated for wet marine use and stays flexible in the cold\u003c\/li\u003e\n  \u003cli\u003eFlat jacket lays flat behind headliners and pulls cleanly through stringers and lazarettes\u003c\/li\u003e\n  \u003cli\u003eUL and ABYC certified marine cable that stands up to insurance-survey scrutiny\u003c\/li\u003e\n  \u003cli\u003eSized for low-draw circuits like LED lighting, nav lights, instruments, and small pumps in the 10 to 15 amp range\u003c\/li\u003e\n  \u003cli\u003eStranded construction flexes with the boat and takes constant vibration without cracking\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 Sea-Dog 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 gauge and how many conductors is this wire?\u003c\/summary\u003e\n    \u003cp\u003eIt's 16 AWG with two conductors, a red and a black, in a flat duplex jacket. That makes it a two-conductor cable for standard positive and negative runs.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow long is the spool?\u003c\/summary\u003e\n    \u003cp\u003eEach spool is 250 feet, sized for a full rewire rather than a single repair. It's usually enough to cover all the lighting and instrument runs on a mid-size boat with some left over.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the copper tinned?\u003c\/summary\u003e\n    \u003cp\u003eYes. Both conductors are stranded tinned copper. The tin coating is what keeps the strands from corroding in salt air and humidity, so your connections stay clean over the long haul.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it UL and ABYC certified?\u003c\/summary\u003e\n    \u003cp\u003eYes, this cable carries UL and ABYC certification. That's the marine-grade standard surveyors and insurers look for on a boat's wiring.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat circuits is 16\/2 good for?\u003c\/summary\u003e\n    \u003cp\u003eIt's ideal for low-draw circuits: LED cabin and nav lights, instrument power, small pumps, and switch-panel feeds. Those typically run in the 10 to 15 amp protection range.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy tinned copper instead of bare copper?\u003c\/summary\u003e\n    \u003cp\u003eBare copper corrodes and goes green the first season it sees salt air, which raises resistance and weakens connections. Tinned copper resists that corrosion and keeps making a solid connection year after year.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the advantage of flat duplex over round cable?\u003c\/summary\u003e\n    \u003cp\u003eFlat duplex lays flat behind headliners and panels and pulls through tight runs like stringers and lazarettes without fighting you. It also separates cleanly between the two conductors when you strip it for terminals.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this pass an insurance survey?\u003c\/summary\u003e\n    \u003cp\u003eMarine-rated tinned copper cable that meets UL and ABYC is exactly what a surveyor wants to see. Non-tinned or non-marine substitutes are the ones that tend to get flagged.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to worry about voltage drop on long runs?\u003c\/summary\u003e\n    \u003cp\u003eOn longer runs you should. For LED nav lights more than about 25 feet from the panel, work out the voltage drop before you commit, and step up a gauge if the numbers come out tight.\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\u003eStranded Conductor; 16\/2 AWG; Flat Encasement; 250 Foot; Black\/ Red; Tinned Copper Conductor\/ PVC Insulation; UL\/ ABYC Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSea-Dog\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e8016204\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e035514802420\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eGauge\u003c\/th\u003e\n\u003ctd\u003e16 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductors\u003c\/th\u003e\n\u003ctd\u003e2 (Duplex)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e250 Feet\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductor Colors\u003c\/th\u003e\n\u003ctd\u003eBlack \/ Red\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductor Material\u003c\/th\u003e\n\u003ctd\u003eTinned Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConductor Type\u003c\/th\u003e\n\u003ctd\u003eStranded\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInsulation Material\u003c\/th\u003e\n\u003ctd\u003ePVC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCable Construction\u003c\/th\u003e\n\u003ctd\u003eFlat Encasement (Flat Duplex)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eUL \/ ABYC\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 4.7 out of 5 across 58 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\"\u003eM. Callahan\u003c\/span\u003e \u003cspan class=\"nvn-review-date\"\u003e2025-06-12\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cp class=\"nvn-review-body\"\u003eRewired all the cabin lighting and instrument feeds on my 34 footer off one spool and still had plenty left for the bilge pump leads. The tinned strands terminate clean and the flat jacket routed easily behind the headliner.\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. Ellison\u003c\/span\u003e \u003cspan class=\"nvn-review-date\"\u003e2025-02-08\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cp class=\"nvn-review-body\"\u003ePulled this through some tight lazarette runs without a fight. It strips cleanly between the two conductors if you use a sharp marine stripper. The red and black marking made landing everything at the panel simple.\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\"\u003eD. Whitfield\u003c\/span\u003e \u003cspan class=\"nvn-review-date\"\u003e2024-11-20\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cp class=\"nvn-review-body\"\u003eGood quality tinned duplex at a fair price for a full roll. Just mind the voltage drop on longer nav light runs and keep it clear of the exhaust riser. Connections still look clean after a couple of seasons.\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 gauge and how many conductors is this wire?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's 16 AWG with two conductors, a red and a black, in a flat duplex jacket. That makes it a two-conductor cable for standard positive and negative runs.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How long is the spool?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Each spool is 250 feet, sized for a full rewire rather than a single repair. It's usually enough to cover all the lighting and instrument runs on a mid-size boat with some left over.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the copper tinned?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Both conductors are stranded tinned copper. The tin coating is what keeps the strands from corroding in salt air and humidity, so your connections stay clean over the long haul.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it UL and ABYC certified?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, this cable carries UL and ABYC certification. That's the marine-grade standard surveyors and insurers look for on a boat's wiring.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What circuits is 16\/2 good for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's ideal for low-draw circuits: LED cabin and nav lights, instrument power, small pumps, and switch-panel feeds. Those typically run in the 10 to 15 amp protection range.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why tinned copper instead of bare copper?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Bare copper corrodes and goes green the first season it sees salt air, which raises resistance and weakens connections. Tinned copper resists that corrosion and keeps making a solid connection year after year.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the advantage of flat duplex over round cable?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Flat duplex lays flat behind headliners and panels and pulls through tight runs like stringers and lazarettes without fighting you. It also separates cleanly between the two conductors when you strip it for terminals.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will this pass an insurance survey?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Marine-rated tinned copper cable that meets UL and ABYC is exactly what a surveyor wants to see. Non-tinned or non-marine substitutes are the ones that tend to get flagged.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to worry about voltage drop on long runs?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"On longer runs you should. For LED nav lights more than about 25 feet from the panel, work out the voltage drop before you commit, and step up a gauge if the numbers come out tight.\"\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\": \"Sea-Dog 16\/2 AWG Flat Duplex Tinned Marine Wire, 250 ft\",\n    \"review\": [\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"M. Callahan\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"datePublished\": \"2025-06-12\",\n            \"reviewBody\": \"Rewired all the cabin lighting and instrument feeds on my 34 footer off one spool and still had plenty left for the bilge pump leads. The tinned strands terminate clean and the flat jacket routed easily behind the headliner.\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"R. Ellison\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"datePublished\": \"2025-02-08\",\n            \"reviewBody\": \"Pulled this through some tight lazarette runs without a fight. It strips cleanly between the two conductors if you use a sharp marine stripper. The red and black marking made landing everything at the panel simple.\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"D. Whitfield\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"4\",\n                \"bestRating\": \"5\"\n            },\n            \"datePublished\": \"2024-11-20\",\n            \"reviewBody\": \"Good quality tinned duplex at a fair price for a full roll. Just mind the voltage drop on longer nav light runs and keep it clear of the exhaust riser. Connections still look clean after a couple of seasons.\"\n        }\n    ],\n    \"aggregateRating\": {\n        \"@type\": \"AggregateRating\",\n        \"ratingValue\": \"4.7\",\n        \"reviewCount\": \"58\",\n        \"bestRating\": \"5\"\n    }\n}\n\u003c\/script\u003e\n","brand":"Sea-Dog","offers":[{"title":"Default Title","offer_id":45059362357341,"sku":"2008423","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_843c1bdc-3551-42a5-bb68-5311c308b12a.png?v=1789504542","url":"https:\/\/nvnmarine.com\/products\/sea-dog-16-2-awg-flat-duplex-marine-wire-250-ft","provider":"NVN Marine","version":"1.0","type":"link"}