--- product_id: 281660328 title: "Fernco 1056-66 6-in. Flexible PVC Pipe Coupling for Cast Iron/Plastic/Steel Plumbing Connections in Black" brand: "fernco" price: "€ 77.95" currency: EUR in_stock: true reviews_count: 5 category: "Fernco" url: https://www.desertcart.gr/products/281660328-fernco-1056-66-6-in-flexible-pvc-pipe-coupling-cast store_origin: GR region: Greece --- # 300-grade stainless steel clamps 140Β°F intermittent temp resistance 50-year durability Fernco 1056-66 6-in. Flexible PVC Pipe Coupling for Cast Iron/Plastic/Steel Plumbing Connections in Black **Brand:** fernco **Price:** € 77.95 **Availability:** βœ… In Stock ## Summary > πŸ”§ Connect with Confidence β€” The Last Coupling You'll Ever Need! ## Quick Answers - **What is this?** Fernco 1056-66 6-in. Flexible PVC Pipe Coupling for Cast Iron/Plastic/Steel Plumbing Connections in Black by fernco - **How much does it cost?** € 77.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/281660328-fernco-1056-66-6-in-flexible-pvc-pipe-coupling-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 - β€’ **Built to Last Half a Century:** Engineered for a 50-year leak-proof service life with premium elastomeric PVC. - β€’ **Universal Pipe Compatibility:** Seamlessly connects cast iron, plastic, steel, copper & more for versatile plumbing solutions. - β€’ **Industry-Approved Reliability:** Meets ASTM, CSA, and UPC standards for trusted performance in sewer and drain systems. - β€’ **Effortless, No-Mess Installation:** Forget primers and gluesβ€”install quickly with corrosion-resistant stainless steel clamps. - β€’ **Precision Fit for Pipes 6.3"–6.8" OD:** Flexible coupling adapts perfectly to a range of pipe diameters, ensuring a watertight seal. ## Overview The Fernco 1056-66 is a 6-inch flexible PVC pipe coupling designed for professional-grade plumbing connections across cast iron, plastic, steel, and copper pipes. Featuring elastomeric PVC construction and 300-grade stainless steel clamps, it delivers a 50-year leak-proof seal resistant to chemicals, sewer gases, and root intrusion. Its flexible fit accommodates pipe outer diameters from 6.3 to 6.8 inches, enabling quick, no-mess installation without primers or glues. Certified to ASTM, CSA, and UPC standards, this coupling withstands intermittent temperatures up to 140Β°F and pressures up to 4.3 PSI, making it a trusted choice for durable sewer, drain, and vent piping solutions. ## Description Introducing the Fernco P1056-66 a robust 6" X 6" coupling connector designed to seamlessly integrate Cast Iron, Plastic (Sch-40, SDR-35, ABS), Steel, and Copper pipes in sewer, drain, and plumbing systems. Engineered with precision, this adapter effortlessly accommodates 6" pipes or those with outer diameters ranging from 6.3"-6.8", ensuring versatility across various applications. Crafted with meticulous attention to quality, Fernco couplings feature elastomeric polyvinyl chloride construction and 300-grade stainless steel bands, providing a leak-proof fitting resistant to chemicals and sewer gases. Trusted by industry professionals and homeowners, Fernco couplings establish enduring, watertight seals for sewer and drain connections without the need for cumbersome glues or primers. Suitable for seamless integration in both vertical and horizontal installations. With a maximum test pressure of 4.3 PSI and an intermittent operating temperature of 140 degrees F, these couplings offer unrivaled leak-proof, root-proof, and chemical-resistant attributes, ensuring unmatched reliability and longevity for your waterworks and plumbing requirements. Proudly manufactured in the United States for over 60 years, Fernco stands as the premier choice for dependable solutions in plumbing fittings. With a maximum test pressure of 4.3 PSI and an intermittent operating temperature of 140 degrees F, these couplings offer unrivaled leak-proof, root-proof, and chemical-resistant attributes, ensuring unmatched reliability and longevity for your waterworks and plumbing requirements. Proudly manufactured in the United States for over 60 years, Fernco stands as the premier choice for dependable solutions in plumbing fittings. Review: 6.5 inches - inner diameter is actually 6.5 inches. the clamps do a decent job at wrapping two 6 inch pipes together tho. Review: If you have pipe this is a coupling. - Has lots of stretch for odd sized pipes. Real thick and sturdy. The hose clamps do their job well. So easy to put on that even a house husband can install it. Decent amount of flex for misaligned pipes. ## 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 6.59"and fits pipe ODs between 6.30" - 6.80". - CONNECT VARIOUS PIPE TYPES: The Fernco 1056-66 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 | B001AU6S8C | | Best Sellers Rank | #226,687 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,310 in Industrial Pipe Fittings | | Brand | Fernco | | Brand Name | Fernco | | Color | Black | | Colour | Black | | Connector Type | Coupling | | Connector type | Coupling | | Country of Publication | China | | Customer Reviews | 4.6 out of 5 stars 172 Reviews | | Exterior Finish | Stainless Steel | | Global Trade Identification Number | 00018578000148 | | Included Components | P1056-66 Coupler Adapter | | Item Dimensions | 18.4 x 19.1 x 14.6 centimeters | | Item Type Name | Cast Iron, Plastic and Steel Pipe Flexible Coupling Connector Sewer and Drain Coupler Adapter | | Item Weight | 907 g | | Item dimensions L x W x H | 18.4 x 19.1 x 14.6 centimeters | | Manufacturer | Fernco Inc. | | Manufacturer Part Number | P1056-66 | | Material | Polyvinyl Chloride | | Material Type | Polyvinyl Chloride | | Model Number | P1056-66 | | Number of Pieces | 1 | | Size | 6" x 6" | | Thread Size | 6.8 inches | | Thread Type | NPT | | UPC | 018578000148 | | Unit Count | 1 Count | ## Product Details - **Brand:** Fernco - **Colour:** Black - **Item dimensions L x W x H:** 18.5 x 18.5 x 14.7 centimeters - **Material:** Polyvinyl Chloride - **Size:** 6" x 6" ## Images ![Fernco 1056-66 6-in. Flexible PVC Pipe Coupling for Cast Iron/Plastic/Steel Plumbing Connections in Black - Image 1](https://m.media-amazon.com/images/I/51IloNyJ6-L.jpg) ## Questions & Answers **Q: What outside diameter pipe will these work on?** A: There for 6" pipe not sure if that's the inside diameter or outside. The are flexible can stretch a little. **Q: Can you tell me what the inside diameter is?** A: Just under 6 inches. They are designed to fit 6 inch diameter PVC or iron. ## Customer Reviews ### ⭐⭐⭐⭐ 6.5 inches *by A***R on 12 May 2024* inner diameter is actually 6.5 inches. the clamps do a decent job at wrapping two 6 inch pipes together tho. ### ⭐⭐⭐⭐⭐ If you have pipe this is a coupling. *by C***A on 19 January 2025* Has lots of stretch for odd sized pipes. Real thick and sturdy. The hose clamps do their job well. So easy to put on that even a house husband can install it. Decent amount of flex for misaligned pipes. ### ⭐⭐⭐⭐⭐ Thick rubber *by D***D on 28 February 2026* Pretty basic. Quality rubber. ## Frequently Bought Together - Fernco 1056-66 6-in. Flexible PVC Pipe Coupling for Cast Iron/Plastic/Steel Plumbing Connections in Black - Fernco 1056-64 6" x 4" Flexible Pipe Coupling (Connects Cast Iron, PVC, Steel or Lead) - Fernco P1056-44 Flexible PVC Pipe Coupling for Cast Iron, Plastic or Steel to Cast Iron, Plastic or Steel Connections --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/281660328-fernco-1056-66-6-in-flexible-pvc-pipe-coupling-cast](https://www.desertcart.gr/products/281660328-fernco-1056-66-6-in-flexible-pvc-pipe-coupling-cast) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-04*