--- product_id: 454546463 title: "Fernco 2-Pack 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black" brand: "fernco" price: "NZ$138" currency: NZD in_stock: true reviews_count: 5 category: "Fernco" url: https://www.desertcart.nz/products/454546463-fernco-2-pack-1056-44-4-in-flexible-pvc-pipe store_origin: NZ region: New Zealand --- # Fits 4.10"–4.65" OD pipes Corrosion-resistant stainless clamps 50-year durability Fernco 2-Pack 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black **Brand:** fernco **Price:** NZ$138 **Availability:** ✅ In Stock ## Summary > 🔧 Connect with Confidence — The Last Coupling You'll Ever Need! ## Quick Answers - **What is this?** Fernco 2-Pack 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black by fernco - **How much does it cost?** NZ$138 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/454546463-fernco-2-pack-1056-44-4-in-flexible-pvc-pipe) ## 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 - • **Built to Last a Lifetime:** Engineered for a 50-year service life with premium elastomeric PVC for unmatched durability and leak-proof performance. - • **Universal Pipe Compatibility:** Seamlessly connects PVC, cast iron, copper, steel, and more — your all-in-one plumbing solution. - • **Trusted by Experts Since 1964:** Join the ranks of professionals who rely on Fernco’s proven quality and innovation for flawless plumbing projects. - • **Pro-Grade Corrosion Resistance:** 300-series stainless steel clamps resist rust and corrosion, ensuring long-term reliability in any environment. - • **Effortless, No-Mess Installation:** Forget primers and glues; slide on and tighten stainless steel clamps for a quick, clean fit every time. ## Overview The Fernco 2-Pack 1056-44 flexible PVC pipe couplings deliver professional-grade, leak-proof connections for 4-inch pipes ranging from 4.10" to 4.65" OD. Crafted from durable elastomeric PVC and equipped with corrosion-resistant stainless steel clamps, these couplings connect a wide variety of pipe materials including cast iron, PVC, copper, and steel. Designed for easy, no-mess installation without primers or glue, they offer a 50-year service life and meet ASTM, CSA, and UPC standards—making them the trusted choice for both pros and savvy DIYers. ## 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: Worked great on radon mitigation system - After realizing we had a radon problem in our house, I took to installing a DIY radon mitigation system. It was hard work and required drilling through the concrete floor and foundation. But in the end, once I installed the radon away mitigation fan on the radonX piping, these two couplers worked great. They were very heavy duty construction. Fit perfectly in the radonX pipe and allowed for easy tightening. Radon has dropped significantly done so these have created a perfect seal. Great product 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 | #45,784 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #293 in Industrial Pipe Fittings | | Brand | Fernco | | Brand Name | Fernco | | Color | Black | | Colour | Black | | Connector Type | Coupling | | Connector type | Coupling | | Customer Reviews | 4.6 out of 5 stars 43 Reviews | | Exterior Finish | Stainless Steel | | Global Trade Identification Number | 20018578015559 | | Item Dimensions | 12.7 x 14 x 20.3 centimeters | | Item Weight | 0.89 Kilograms | | Item dimensions L x W x H | 12.7 x 14 x 20.3 centimeters | | 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 | 2.0 Count | ## Product Details - **Brand:** Fernco - **Colour:** Black - **Item dimensions L x W x H:** 12.7 x 14 x 20.3 centimeters - **Material:** Polyvinyl Chloride - **Size:** 4 Inch ## Images ![Fernco 2-Pack 1056-44 4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black - Image 1](https://m.media-amazon.com/images/I/51ilkpjRvtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked great on radon mitigation system *by A***A on 17 May 2026* After realizing we had a radon problem in our house, I took to installing a DIY radon mitigation system. It was hard work and required drilling through the concrete floor and foundation. But in the end, once I installed the radon away mitigation fan on the radonX piping, these two couplers worked great. They were very heavy duty construction. Fit perfectly in the radonX pipe and allowed for easy tightening. Radon has dropped significantly done so these have created a perfect seal. Great product ### ⭐⭐⭐⭐⭐ Great Couplers for 4inch Radon Systems *by U***T on 8 April 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 14 August 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.nz/products/454546463-fernco-2-pack-1056-44-4-in-flexible-pvc-pipe](https://www.desertcart.nz/products/454546463-fernco-2-pack-1056-44-4-in-flexible-pvc-pipe) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-07-04*