--- 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: "41479CFA" currency: XOF in_stock: true reviews_count: 5 category: "Elecfun" url: https://www.desertcart.sn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat store_origin: SN region: Senegal --- # 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:** 41479CFA **Availability:** ✅ In 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?** 41479CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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 and cable connectors for years and has achieved unanimous acclaim in the industry. We provide top-quality heat shrink tubing at reasonable prices. ELECFUN empowers electricians and DIY lovers to make professional electrical connections through quality products. Our industrial heat-shrink tubing for wires has excellent flame retardant and insulation performance, good tightness, acid and alkali resistance, anti-aging, rust prevention, corrosion protection, durable. Our marine-grade heat shrink wrap is perfect for marine, automotive, electrical, wires, etc.ELECFUN's heat shrink tubing comes in kits, 4 Ft rolls, 50 Ft rolls and much more on desertcart. We offer a great variety of sizes (3/32" to 3") and colors (black, red, white, blue, clear). Our factory supports customized sizes and high volume B2B purchasing. Review: Big a** heat shrink tubing - 3 inch diameter heat shrink takes a lot of heat to shrink down, but it shrinks down nicely. It should be very waterproof with the epoxiy lining. Review: R collet Shrink Tubing - As advertised. Perfect for my need. ## Features - Tube's Diameter: 3 inches ( 80 mm ), it measured when round, not flat - Package: 1 pcs black 3 inch 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 waterproof and long-lasting insulation - Dual Wall Tube and Safer: Outer wall provides abrasion resistance. The inner wall creates a waterproof seal and strain relief - ELECFUN's heat shrink tubing comes in kits, 4 Ft rolls, 50 Ft rolls and much more. We offer a great variety of sizes (3/32” to 3”) and colors (black, red, white, blue, clear). Our factory supports customized sizes and high volume B2B purchasing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09STBHCG2 | | Brand | ELECFUN | | Brand Name | ELECFUN | | Color | Black | | Colour | Black | | Customer Reviews | 4.4 out of 5 stars 194 Reviews | | Item Dimensions L x W | 121.9L x 2.5W centimeters | | Item Length | 4 Feet | | Manufacturer | ELECFUN | | Material | Polyolefin | | Material Type | Polyolefin | | Nominal Wall Thickness | 0.4 month | | Nominal wall thickness | 0.4 month | | Outside Diameter | 3 Inches | | Outside diameter | 3 Inches | | Product dimensions | 121.9L x 2.5W centimeters | | UPC | 192389013099 | | Unit Count | 1.2192 Meters | ## Product Details - **Brand:** ELECFUN - **Colour:** Black - **Material:** Polyolefin - **Nominal wall thickness:** 0.4 month - **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) ![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 2](https://m.media-amazon.com/images/I/813e4h3WnxL.jpg) ![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 3](https://m.media-amazon.com/images/I/71YsejVoydL.jpg) ![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 4](https://m.media-amazon.com/images/I/81pbc3zdm2L.jpg) ![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 5](https://m.media-amazon.com/images/I/61HJlgrZ7WL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Big a** heat shrink tubing *by N***. on 29 May 2026* 3 inch diameter heat shrink takes a lot of heat to shrink down, but it shrinks down nicely. It should be very waterproof with the epoxiy lining. ### ⭐⭐⭐⭐⭐ R collet Shrink Tubing *by W***N on 29 May 2026* As advertised. Perfect for my need. ### ⭐⭐⭐⭐ Not 3 inch heat shrink *by C***S on 12 June 2025* I ordered this 3 inch heat shrink. What I got was 5 inch. I was able to use it anyway as it did shrink enough for what I wanted but it took a lot more time and heat and was starting to melt what I was trying to cover by the time it was done. UPDATE: The vendor reached out and refunded the purchase of this heat shrink and offered a smaller size free of charge therefore I am upping my review. The explanation for the size discrepancy didn't make sense to me, and didn't match what I experienced, but the fact that they were willing to take significant steps to make it right matters. ## 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.sn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat](https://www.desertcart.sn/products/527564939-elecfun-3in-heat-shrink-tubing-3-1-large-marine-heat) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-02*