--- product_id: 527564939 title: "ELECFUN 3in Heat Shrink Tubing 3:1 Large Marine Heat Shrink Tube Dual Wall Adhesive Shrinkable Wire Wrap Tube, Fully Insulation (4 Feet Black Tubing)" brand: "elecfun" price: "13.38 DT" currency: TND in_stock: false category: "Elecfun" url: https://www.desertcart.tn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat store_origin: TN region: Tunisia --- # Adhesive-lined waterproof seal 3-inch diameter for large cables 3:1 shrink ratio for tight seals ELECFUN 3in Heat Shrink Tubing 3:1 Large Marine Heat Shrink Tube Dual Wall Adhesive Shrinkable Wire Wrap Tube, Fully Insulation (4 Feet Black Tubing) **Brand:** elecfun **Price:** 13.38 DT **Availability:** ❌ Out of Stock ## Summary > 🔥 Seal it tight, protect it right! 🔥 ## Quick Answers - **What is this?** ELECFUN 3in Heat Shrink Tubing 3:1 Large Marine Heat Shrink Tube Dual Wall Adhesive Shrinkable Wire Wrap Tube, Fully Insulation (4 Feet Black Tubing) by elecfun - **How much does it cost?** 13.38 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat) ## Best For - elecfun enthusiasts ## Why This Product - Trusted elecfun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual-Wall Durability:** Outer abrasion resistance meets inner waterproof adhesive for ultimate protection. - • **Customizable & Scalable:** Available in multiple sizes and colors, with B2B bulk options to match your project scale. - • **Massive 3-Inch Diameter:** Fits and protects even the bulkiest cables with ease. - • **Marine-Grade Reliability:** Built to withstand harsh environments—perfect for automotive and marine pros. - • **Precision 3:1 Shrink Ratio:** Ensures a snug, professional-grade seal every time. ## Overview ELECFUN’s 3-inch diameter, dual-wall heat shrink tubing offers a professional 3:1 shrink ratio with adhesive lining for waterproof, abrasion-resistant insulation. Ideal for marine, automotive, and industrial applications, this 4-foot black roll delivers durable, corrosion-resistant protection with customizable sizing and bulk purchasing options. ## Description ELECFUN is a subsidiary of a 20-old company with strong factory resources, and collaborating with some Fortune 500 companies. ELECFUN has specialized in heat shrink tubing, wire terminal connectors, and battery cable end for years and has achieved unanimous acclaim in the industry. We provide top-quality heat shrink tubes at reasonable prices. ELECFUN empowers electricians and DIY lovers to make professional electrical connections through quality products. Our industrial heat shrinking tubing for wires has excellent flame retardant and performance, weatherproof, good tightness, acid and alkali resistance, anti-aging, rust prevention, oil resistant, corrosion protection, durable. Our marine grade heat shrink wrap is perfect for boat, marine, automotive, electrical, eventronic, wires, etc.ELECFUN's heat shrink tubing comes in assortment kit, 4 Ft rolls, 8Ft roll, 10Ft roll, 20Ft roll, 50 Ft rolls and much more on desertcart. We offer a great variety of sizes (3/32", 1/8" ,3/16" ,1/4" ,3/8" ,1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4", and larger) and colors (black, red, white, blue, clear, brown), also include 2:1, 3:1, 4:1 shrink ratio fully insulated thick tubings. If you don't know the specific size requirements, just tell me the gauge of the wires, and we'll give you the most accurate choice. Our factory supports customized sizes and high volume B2B purchasing, please keep in touch by desertcart message. ## Features - The Round Diameter is 3" / 80mm (Before Shrinking) and 1" / 25.4mm (After Shrinking). For packaging convenience, we pressure the tubing into a packing size of 5" / 127mm - Package: 1 pcs black 3 inch large marine grade heat shrink tubing roll, total length: 4 feet - 3:1 Shrink Ratio: Shrink ratio of our industrial heatshrink tube is 3:1, which makes a tighter seal. Shrinkage temperature: 80 - 125 ℃, professional connections made in seconds - Adhesive Lined Heat Shrink Tubing: While heating, the adhesive lined comes out and seals the connection, creating water tight and long-lasting sealing - Dual Wall Tube and Safer: Outer wall provides abrasion resistance. The inner wall creates a water tight sealing and strain relief. All heat shrink tubing is UL-listed and compliant with SGS, RoHS, REACH, CE, and ISO9001 standards - Wide Applications: ELECFUN's waterproof shrink tube are mainly used for industrial, ship, automotive, wire links, anti-rust and anti-corrosion protection of solder joints, wiring wrap, cable protection, and audio and electrical DIY - More Sizes: Our factory offers various color and size (e.g. 3/32" ... 1.25",1.5",1.75", 2.5",3",3.5", 4", and larger dia) small, big, rolls and kits, shrink ratio 2:1, 3:1, and 4:1. Support custom size, special usage tubes and high volume B2B purchasing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09STBHCG2 | | ASIN | B09STBHCG2 | | Brand Name | ELECFUN | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (206) | | Customer reviews | 4.4 4.4 out of 5 stars (206) | | Date First Available | 27 April 2022 | | Item Dimensions L x W | 121.9L x 2.5W centimeters | | Item Length | 4 Feet | | Item model number | RSG-D 3in-black | | Manufacturer | ELECFUN | | Manufacturer | ELECFUN | | Material Type | Polyolefin | | Maximum Pressure | 10 Bars | | Nominal Wall Thickness | 3 Inches | | Outside Diameter | 3 Inches | | Product Dimensions | 121.92 x 2.54 x 0.1 cm; 308 g | | UPC | 192389013099 | | Unit Count | 1.2192 Meters | ## Product Details - **Brand:** ELECFUN - **Colour:** Black - **Material:** Polyolefin - **Maximum pressure:** 10 Bars - **Product dimensions:** 121.9L x 2.5W centimeters ## Images ![ELECFUN 3in Heat Shrink Tubing 3:1 Large Marine Heat Shrink Tube Dual Wall Adhesive Shrinkable Wire Wrap Tube, Fully Insulation (4 Feet Black Tubing) - Image 1](https://m.media-amazon.com/images/I/610YxK+OsIL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - ELECFUN 3 Inch Heat Shrink Tubing Roll, 3:1 Large Marine Grade Adhesive Lined Heatshrink Tube, Heavy Duty Dual Wall Shrinkable Wiring Wrap, Seal Against Moisture Corrosion and Air Leakage 4 ft - XHF 2 Inch (50mm) 3:1 Waterproof Heat Shrink Tubing Marine Grade Wire Cable Adhesive Lined Tube Insulation Seal Against Moisture Corrosion and Air Leakage, 4 Ft Black - 2 Inch Heat Shrink Tubing - 5 Ft 3:1Ratio Waterproof Heat Shrink Tubin - Adhesive Lined,Dual Wall Adhesive Shrinkable Wire Wrap Tube - Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat](https://www.desertcart.tn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-01*