--- product_id: 601495894 title: "6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting" brand: "cuchiilo" price: "KD 91.80" currency: KWD in_stock: true reviews_count: 13 category: "Cuchiilo" url: https://www.desertcart.com.kw/products/601495894-6-in-x-25-ft-insulated-flexible-duct-r4-2 store_origin: KW region: Kuwait --- # 6-inch flexible, bendable duct Up to 85% noise reduction R-4.2 thermal insulation rating 6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting **Brand:** cuchiilo **Price:** KD 91.80 **Availability:** ✅ In Stock ## Summary > 🌀 Bend, Insulate, Silence — Elevate Your Airflow Game! ## Quick Answers - **What is this?** 6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting by cuchiilo - **How much does it cost?** KD 91.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/601495894-6-in-x-25-ft-insulated-flexible-duct-r4-2) ## Best For - cuchiilo enthusiasts ## Why This Product - Trusted cuchiilo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ultimate Flexibility:** 6-inch diameter duct bends freely—ditch rigid elbows and reduce installation hassle. - • **Durable Silver Jacket:** Thickened aluminum foil with elastic spiral steel wire ensures long-lasting strength and shape retention. - • **Noise-Reducing Design:** Fluffy glass wool core absorbs sound, cutting noise by up to 85% for a quieter space. - • **Premium R-4.2 Insulation:** Maximize energy efficiency with Owens Corning glass wool for superior thermal resistance. - • **Versatile HVAC Compatibility:** Perfect for central air, fresh air ventilation, and mechanical recovery systems without corrosive gases. ## Overview This 6-inch by 25-foot insulated flexible duct features a high-performance R-4.2 Owens Corning glass wool insulation wrapped in a durable silver aluminum jacket reinforced with elastic spiral steel wire. Designed for HVAC systems, it offers exceptional thermal resistance (-4℃ to 454℃), up to 85% noise reduction, and flexible installation without rigid elbows, making it a reliable, energy-efficient, and quiet ventilation solution. ## Description Product description Review: It’s Ducting—And It Does Exactly What Ducting Should - Not much to say here: it’s 6" insulated flexible ducting, and it did the job perfectly. Easy to work with, solid insulation, and exactly what I needed for my project. Sometimes you just need something that works without any drama—and this delivered. Five stars! Review: Tough Enough if you're careful - The inner "foil" layer was much tougher than another reviewer said. It's more of a "mylar" plastic silver mirror kind of material. I only needed 15 to 17 feet, so I didn't mind ruining the end I attached to a rope for pulling through the hordes of black widows and rattlers. The insulation is as expected. I did tear the outer layer just a tiny bit pulling it with a rope I'd fish-taped through a confined crawlspace trench I had to hand-excavate. Attaching it firmly to the flanges worked well however the Hose Clamp, or Radiator Clamp style items supplied were some metric size I had no socket bit for. So, picture a guy on his back in dirt with spider webs hanging down trying to use a flathead driver on his drill to tighten a long long long clamp. One spider said: Hey, how-ya-doin?" I have patience. I attached it to one flange from inside the home, the other from underneath. Both ends were easier than expected. This is a quality product, but fragile as you might imagine. Be careful of it and it's tough enough and a good value. ## Features - 【🌿🛒High-quality performance 6 insualted duct】Made of thickened aluminum foil material and made of high-strength elastic spiral steel wire.The middle is covered with glass fiber insulation layer, which has high temperature resistance, acid and alkali resistance, and flame retardancy. - 【🌿🛒Owens Corning Glass Wool Insualtion 】Glass wool Insualtion is the safest building material, with high corrosion resistance and thermal insulation,R value: R-4.2. The temperature resistance range is -4℃~454℃. - 【🌿🛒Sound absorption and noise reduction insulation】 The internal structure of glass wool insulationis fluffy and the overall density is large, which can absorb the sound in time,Noise can be reduced by up to 85%. - 【🌿🛒6 inch Flexible Duct】 It can be bent arbitrarily, without rigid elbows, the aluminum foil is self-sustaining and will not retract after installation.It can maintain the flatness in the tube and reduce the wind resistance. - 【🌿🛒Multi Function】Used for high, medium and low pressure ventilation system without corrosive gas. Mainly used in central air conditioning HVAC system,Fresh air ventilation systems, mechanical equipment recovery systems and other ventilation systems that do not contain corrosive gases, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CNW1NV3V | | Best Sellers Rank | #25,435 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #29 in HVAC Ducting | | Brand | Cuchiilo | | Brand Name | Cuchiilo | | Coverage | 549.78 square feet | | Customer Reviews | 4.2 out of 5 stars 296 Reviews | | Item Dimensions L x W | 300"L x 6"W | | Manufacturer | Cuchiilo | | Material | Aluminum, Fiberglass | | Material Type | Aluminum, Fiberglass | | Product Dimensions | 300"L x 6"W | | Recommended Uses For Product | ventilation systems, air conditioning, and heating systems | ## Product Details - **Brand:** Cuchiilo - **Manufacturer:** Cuchiilo - **Material:** Aluminum, Fiberglass - **Product Dimensions:** 300"L x 6"W - **Recommended Uses For Product:** ventilation systems, air conditioning, and heating systems ## Images ![6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting - Image 1](https://m.media-amazon.com/images/I/71WBnYiYrLL.jpg) ![6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting - Image 2](https://m.media-amazon.com/images/I/712OBBWkU6L.jpg) ![6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting - Image 3](https://m.media-amazon.com/images/I/71ia-CZVOOL.jpg) ![6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting - Image 4](https://m.media-amazon.com/images/I/7198Zk97eXL.jpg) ![6 in. x 25 ft. Insulated Flexible Duct R4.2 Silver Jacket, 6 - Flexible Ductwork - Ducting & Venting - Image 5](https://m.media-amazon.com/images/I/71ydRiEVRQL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It’s Ducting—And It Does Exactly What Ducting Should *by D***N on November 28, 2025* Not much to say here: it’s 6" insulated flexible ducting, and it did the job perfectly. Easy to work with, solid insulation, and exactly what I needed for my project. Sometimes you just need something that works without any drama—and this delivered. Five stars! ### ⭐⭐⭐⭐⭐ Tough Enough if you're careful *by M***K on December 17, 2024* The inner "foil" layer was much tougher than another reviewer said. It's more of a "mylar" plastic silver mirror kind of material. I only needed 15 to 17 feet, so I didn't mind ruining the end I attached to a rope for pulling through the hordes of black widows and rattlers. The insulation is as expected. I did tear the outer layer just a tiny bit pulling it with a rope I'd fish-taped through a confined crawlspace trench I had to hand-excavate. Attaching it firmly to the flanges worked well however the Hose Clamp, or Radiator Clamp style items supplied were some metric size I had no socket bit for. So, picture a guy on his back in dirt with spider webs hanging down trying to use a flathead driver on his drill to tighten a long long long clamp. One spider said: Hey, how-ya-doin?" I have patience. I attached it to one flange from inside the home, the other from underneath. Both ends were easier than expected. This is a quality product, but fragile as you might imagine. Be careful of it and it's tough enough and a good value. ### ⭐⭐⭐⭐⭐ Durable material *by M***U on March 4, 2026* Works as expected. Doesn’t tear easy during installation. Exactly what I needed to install an insulated duct through my unconditioned attic space. ## Frequently Bought Together - Cuchiilo 6 Inch 25 Feet Insulated Flexible Duct R4.2,Flex Duct Insulated, for Heating and Air Conditioning HVAC Systems - MIAHART 6 inch Hose Clamp Adjustable 304 Stainless Steel Duct Clamps Worm Gear Adjustable 141mm-165mm Hose Clamp (Pack of 6) - Lambro #246 6" Aluminum Duct Connector --- ## 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.com.kw/products/601495894-6-in-x-25-ft-insulated-flexible-duct-r4-2](https://www.desertcart.com.kw/products/601495894-6-in-x-25-ft-insulated-flexible-duct-r4-2) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-19*