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Ancor 304148 Adhesive Lined Heat Shrink Tubing 3/8" x 48" Black 12-8 AWG

Manufacturer

Ancor

<h3>Ancor: The Standard in Marine Grade® Electrical Wiring</h3><p>When it comes to marine electrical systems, few names carry as much weight as Ancor. For over four decades, Ancor has held its position as the originator and market leader of <strong>Marine Grade®</strong> wire and wire management solutions. What sets Ancor apart is not just longevity — it is a relentless commitment to engineering products specifically for the harshest environments on earth: saltwater, intense UV exposure, engine-bay vibration, and extreme temperature swings that would destroy ordinary electrical wire.</p><p><a href="/7231-ancor-wire-cable-201198">Ancor wire and cable</a> forms the backbone of countless boat electrical systems, and for good reason. Every conductor is built from tinned copper stranding, a critical distinction from standard bare copper wire. Tinning each individual strand electroplates it with a protective layer that guards against the corrosion and electrolysis that can silently wick through unprotected wire and cause total system failure. The proprietary premium vinyl insulation stays flexible even in extreme cold down to -40°F, while simultaneously resisting saltwater, battery acid, oil, gasoline, and ultraviolet radiation.</p><p>Ancor products are manufactured to precise specifications and designed to meet UL, ABYC, NMMA, and USCG standards — and in many cases exceed them. This industry involvement means that when you wire a boat with Ancor, you are building to a standard recognized by the U.S. Coast Guard, the American Boat and Yacht Council, and the National Marine Manufacturers Association.</p><p>The Ancor catalog spans a comprehensive range of marine electrical needs. Their <a href="/7231-ancor-primary-wire-10128">primary wire</a> is available across a full spectrum of gauges and in every color recommended by ABYC standards, making circuit identification straightforward and code-compliant. For high-current applications like engine starting and battery banks, Ancor's <a href="/7231-ancor-battery-cable-2500">battery cable</a> uses ultra-flexible Type 3 stranding that makes routing heavy-gauge conductors through tight bilge spaces far more manageable. Completing the connection, Ancor's <a href="/7231-ancor-battery-lugs-200145">battery lugs</a> are manufactured from 100% heavy-duty annealed tinned copper to maximize current flow while resisting the corrosive marine atmosphere at every terminal point.</p><p>Beyond conductors, Ancor's product ecosystem includes terminals, connectors, heat shrink tubing, cable ties, and professional installation tools — all engineered to work together as a unified system. Whether you are rewiring a center console from scratch or making targeted repairs to an aging offshore cruiser, Ancor provides the components to do the job right the first time.</p><h3>Why Ancor Is the Go-To Brand for Marine Electricians</h3><ul style="list-style:disc"><li><strong>Tinned Copper Construction:</strong> Every strand is individually electroplated to fight corrosion and electrolysis at the conductor level.</li><li><strong>Proprietary Insulation:</strong> UV, saltwater, acid, oil, and abrasion resistance rated at 600 volts and 221°F dry / 167°F wet.</li><li><strong>Standards Compliance:</strong> Meets and exceeds UL 1426, ABYC, NMMA, and USCG (CFR Title 46) requirements.</li><li><strong>Complete System Approach:</strong> Wire, cable, terminals, connectors, lugs, and tools all designed for compatibility.</li><li><strong>ABYC Color Coding:</strong> Full range of color options ensures proper circuit identification per industry standards.</li></ul><p>From weekend fishing boats to long-range bluewater cruisers, Ancor's Marine Grade® product line delivers the reliability that on-the-water safety demands. Explore the categories below to find the right Ancor solution for your next electrical project.</p>

Part Number

304148
09/12/2036 6:43 PM
Sale Price

$11.38

In Stock (10+)

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Product Details

The Ancor 304148 adhesive-lined heat shrink tubing provides professional-grade wire sealing and protection for marine, automotive, and other demanding electrical applications. This 48-inch section of 3/8-inch diameter tubing shrinks down to 1/8-inch for a secure, watertight fit on 12-8 AWG wire.

Key Features:

  • Cross-linked polyolefin construction - significantly stronger and more durable than standard PVC tubing and will not burn like PVC
  • Heat-activated adhesive lining creates an impervious seal against salt water, oil, acids, and sunlight while providing strain relief
  • Superior 3:1 shrink ratio - shrinks to one-third of original diameter for maximum coverage range
  • Activates at 257°F (125°C) with standard heat gun
  • Wide operating temperature range: -40°C to 110°C (-40°F to 230°F)
  • UL 224 Listed for quality and safety compliance

Specifications:

  • Length: 48 inches (122 cm)
  • Diameter (before shrinking): 3/8 inch (9.5 mm)
  • Diameter (after shrinking): 1/8 inch (3.2 mm)
  • Wire range: 12-8 AWG
  • Package quantity: 1 piece
  • Color: Black

Ideal for marine wiring, trailer connections, and any application requiring superior moisture protection and environmental resistance. The adhesive lining melts when heated to form a watertight seal that prevents corrosion and extends the life of electrical connections.

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