--- product_id: 459137083 title: "1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections, 2-Pack" brand: "fernco" price: "NT$2275" currency: TWD in_stock: true reviews_count: 7 category: "Fernco" url: https://www.desertcart.tw/products/459137083-1056-44-4-in-flexible-pvc-pipe-coupling-for-cast store_origin: TW region: Taiwan --- # Fits 4.10"–4.65" OD pipes Corrosion-resistant stainless clamps 50-year durability 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections, 2-Pack **Brand:** fernco **Price:** NT$2275 **Availability:** ✅ In Stock ## Summary > 🔧 Connect with Confidence — Plumbing Made Effortless! ## Quick Answers - **What is this?** 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections, 2-Pack by fernco - **How much does it cost?** NT$2275 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/459137083-1056-44-4-in-flexible-pvc-pipe-coupling-for-cast) ## Best For - fernco enthusiasts ## Why This Product - Trusted fernco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect Fit Every Time:** Designed for pipes with 4.10" to 4.65" outside diameter, guaranteeing a snug, secure seal. - • **Built to Last Half a Century:** Engineered from elastomeric PVC for unmatched 50-year leak-proof performance. - • **Universal Pipe Compatibility:** Seamlessly connects PVC, cast iron, copper, steel, and more for versatile plumbing solutions. - • **Pro-Grade Corrosion Resistance:** Stainless steel clamps resist rust, ensuring long-term reliability in any environment. - • **Effortless, No-Mess Installation:** Slide on and tighten clamps—no primers, glues, or odors required. ## Overview The Fernco 1056-44 4-inch flexible PVC pipe coupling is a pro-grade plumbing essential designed for a 50-year lifespan. It fits a wide range of pipe materials and diameters (4.10"–4.65" OD), providing a leak-proof, chemical-resistant connection without the hassle of primers or glue. Featuring corrosion-resistant stainless steel clamps, this two-pack ensures quick, secure installations for drain, waste, and vent systems—trusted by professionals and DIYers alike. ## Description Choose the couplings that the pros use for your next drain, waste or vent project. The Fernco 1056-44 flexible PVC coupling quickly connects 4"plastic (PVC, CPVC, abs, smooth wall HDPE), cast iron, copper, steel or lead pipes. Installation is as easy as sliding the coupling on and torquing the stainless steel bands down for a leak-proof connection. Whether you're adding a new laundry sink, replacing rusted cast iron pipe or adding a new bathroom, Fernco couplers make plumbing projects a breeze. If you're working on larger projects or want to keep extra couplings on hand, this two-pack is perfect for any professional or DIYer. Before you grab the primer and glue - be sure and look for the right Fernco coupling. Fernco couplings have been proudly manufactured in the USA since 1964. Our couplings are built to last using the highest quality elastomeric polyvinyl chloride and corrosion-resistant, rust-proof clamps. With a reputation for quality, innovation, and reliable performance, you can trust Fernco as the global leader in flexible plumbing couplings. Review: Good product - Good product. Joined thin wall to regular 4" pvc securely. easy to use. Use a wrench to tighten and not a screwdriver. Review: Great Couplers for 4inch Radon Systems - Used these to connect my Festa AMG Maverick EC Radon Inline 4" Duct Fan to my 4inch DWV sch 40 pipe (4.5" OD). Do not use S&D pipe for Radon systems. It is too thin for a pressure system and does not have the same outside diameter. I didn't know there was a difference until I started researching it. You will see DWV or S&D on the tags in your Home Center on online listing. Always choose DWV for Radon systems. These couplers fit perfectly, almost like a glove. They are extremely well built and should last a long time. They are made from a stiff, thick rubber with two clamps on each coupler. ## Features - UNMATCHED QUALITY & PERFORMANCE: Built for a 50-year service life, Fernco couplings are made from elastomeric polyvinyl chloride for a strong, leak-proof fitting that's resistant to chemicals and sewer gases. - FLEXIBLE FIT: To choose the right coupling, measure the outside diameter (OD) of your pipe. This coupling has an internal diameter (ID) of 4.58" and fits pipe ODs between 4.10" - 4.65" - CONNECT VARIOUS PIPE TYPES: The Fernco 1056-44 coupling connects Plastic (PVC, ABS, CPVC, Smooth Wall HDPE), Cast Iron, Copper, Steel or Lead Pipe for a watertight joint. For sewer and drain, waste and vent piping. - NO-MESS INSTALLATION: Fernco couplings are easy to install without the hassle of messy primers, glues and their unwanted odors. - SPECS & CODES: Conforms to ASTM D 5926, C 1173 CSA B602 and UPC Approved. 300 stainless steel clamps are corrosion-resistant, rustproof and make installing quick and easy with just a screwdriver, nut driver or torque wrench. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B48DCPB7 | | Best Sellers Rank | #58,517 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,753 in Pipe Fittings | | Brand | Fernco | | Brand Name | Fernco | | Color | Black | | Connector Type | Coupling | | Customer Reviews | 4.6 out of 5 stars 46 Reviews | | Exterior Finish | Stainless Steel | | Global Trade Identification Number | 20018578015559 | | Item Dimensions | 5 x 5.5 x 8 inches | | Item Weight | 0.89 kg | | Item dimensions L x W x H | 5 x 5.5 x 8 inches | | Manufacturer | Fernco | | Manufacturer Part Number | 1056-44-2PK | | Material | Polyvinyl Chloride | | Material Type | Polyvinyl Chloride | | Model Number | 1056-44-2PK | | Number of Pieces | 2 | | Set Name | Individual, Pack of 2 | | Size | 4 Inch | | Thread Size | 4 inch | | Unit Count | 2 Count | ## Product Details - **Brand:** Fernco - **Color:** Black - **Connector Type:** Coupling - **Exterior Finish:** Stainless Steel - **Item Weight:** 0.89 kg - **Item dimensions L x W x H:** 5 x 5.5 x 8 inches - **Material:** Polyvinyl Chloride - **Number of Pieces:** 2 - **Size:** 4 Inch - **Thread Size:** 4 inch ## Images ![1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections, 2-Pack - Image 1](https://m.media-amazon.com/images/I/51ilkpjRvtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product *by A***R on July 9, 2026* Good product. Joined thin wall to regular 4" pvc securely. easy to use. Use a wrench to tighten and not a screwdriver. ### ⭐⭐⭐⭐⭐ Great Couplers for 4inch Radon Systems *by U***T on April 8, 2026* Used these to connect my Festa AMG Maverick EC Radon Inline 4" Duct Fan to my 4inch DWV sch 40 pipe (4.5" OD). Do not use S&D pipe for Radon systems. It is too thin for a pressure system and does not have the same outside diameter. I didn't know there was a difference until I started researching it. You will see DWV or S&D on the tags in your Home Center on online listing. Always choose DWV for Radon systems. These couplers fit perfectly, almost like a glove. They are extremely well built and should last a long time. They are made from a stiff, thick rubber with two clamps on each coupler. ### ⭐⭐⭐⭐⭐ Great for repair *by W***E on August 14, 2025* Perfect fit for cast iron to schedule 40 soil pipe ## Frequently Bought Together - Fernco 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections, 2-Pack - Fernco 1056-33 3-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections, 2-Pack - Fernco 1056-43 Coupling Flex 4X3 No Metal --- ## 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.tw/products/459137083-1056-44-4-in-flexible-pvc-pipe-coupling-for-cast](https://www.desertcart.tw/products/459137083-1056-44-4-in-flexible-pvc-pipe-coupling-for-cast) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-08-18*