--- product_id: 449021282 title: "CUCHIILO Insulated Duct 4Inch 25Feet" brand: "cuchiilo" price: "€ 266.10" currency: EUR in_stock: true category: "Cuchiilo" url: https://www.desertcart.be/products/449021282-cuchiilo-insulated-duct-4inch-25feet store_origin: BE region: Belgium --- # Up to 85% noise reduction with glass wool core R-4.2 insulation rating for superior thermal resistance 4 inch diameter for versatile HVAC fit CUCHIILO Insulated Duct 4Inch 25Feet **Brand:** cuchiilo **Price:** € 266.10 **Availability:** ✅ In Stock ## Summary > 🔥 Stay cool, quiet, and efficient with every bend! 🛠️ ## Quick Answers - **What is this?** CUCHIILO Insulated Duct 4Inch 25Feet by cuchiilo - **How much does it cost?** € 266.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/449021282-cuchiilo-insulated-duct-4inch-25feet) ## 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 - • **Quiet Comfort:** Advanced sound absorption cuts noise by up to 85%, creating a peaceful environment. - • **Thermal Shield R-4.2:** High-performance glass wool insulation keeps temperatures steady from -4℃ to 454℃. - • **Durable & Flame Retardant:** Thickened aluminum foil and spiral steel wire resist heat, acids, and flames for lasting safety. - • **Flexible Fit, Zero Hassle:** Bend and shape without rigid elbows—maintains flatness to reduce airflow resistance. - • **Multi-System Compatibility:** Perfect for central HVAC, fresh air ventilation, and mechanical recovery systems without corrosive gases. ## Overview The Cuchiilo 4 Inch Insulated Flexible Duct offers a 25-foot length of durable, flame-retardant aluminum hose with R-4.2 glass wool insulation. Engineered for HVAC systems, it delivers superior thermal resistance, up to 85% noise reduction, and flexible installation without rigid elbows, making it ideal for professional-grade ventilation and air conditioning setups. ## Description Cuchiilo 4 Inch Insulated Flexible Duct,HVAC Insulation Duct,25 Feet Insulated Duct, 4 in Insulated Duct Hose, R4.2 Air Flexible Duct Aluminum Hose 4''25' Long,for HVAC Flex Ductowrk - desertcart.com ## Features - 【🌿🛒High-quality performance 4 in insulated flexible 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. - 【🌿🛒 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%. - 【🌿🛒4 inch insulated 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 of the 4 in insulated flexible duct】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 | B09Y1JV2SV | | Best Sellers Rank | #17,838 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in HVAC Ducting | | Brand | Cuchiilo | | Brand Name | Cuchiilo | | Coverage | 10.47 square feet, R-4.2 | | Customer Reviews | 4.4 out of 5 stars 414 Reviews | | Item Dimensions L x W | 300"L x 4"W | | Item Thickness | 10.2 centimeters | | Manufacturer | Cuchiilo | | Material | Rubber | | Material Type | Rubber | | Product Dimensions | 300"L x 4"W | | Unit Count | 1 Count | ## Product Details - **Brand:** Cuchiilo - **Item Thickness:** 10.2 centimeters - **Manufacturer:** Cuchiilo - **Material:** Rubber - **Product Dimensions:** 300"L x 4"W ## Images ![CUCHIILO Insulated Duct 4Inch 25Feet - Image 1](https://m.media-amazon.com/images/I/71wMLhq77NL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Frequently Bought Together - Cuchiilo 4 Inch Insulated Flexible Duct,HVAC Insulation Duct,25 Feet Insulated Duct, 4 in Insulated Duct Hose, R4.2 Air Flexible Duct Aluminum Hose 4''25' Long,for HVAC Flex Ductowrk - EesTeck 4" (Diameter) Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps (4Pcs, 91mm-114mm) - Aluminum Foil Tape, 2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty HVAC Tape, Silver for Ductwork, Dryer Vent, HVAC --- ## 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.be/products/449021282-cuchiilo-insulated-duct-4inch-25feet](https://www.desertcart.be/products/449021282-cuchiilo-insulated-duct-4inch-25feet) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-11-04*