--- product_id: 18726872 title: "C429-012 11/4 COUPLING" brand: "nibco" price: "€ 11.43" currency: EUR in_stock: true reviews_count: 10 url: https://www.desertcart.be/products/18726872-c429-012-11-4-coupling store_origin: BE region: Belgium --- # High strength Pipe connection Corrosion resistant C429-012 11/4 COUPLING **Brand:** nibco **Price:** € 11.43 **Availability:** βœ… In Stock ## Summary > πŸ”§ Connect with Confidence! ## Quick Answers - **What is this?** C429-012 11/4 COUPLING by nibco - **How much does it cost?** € 11.43 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/18726872-c429-012-11-4-coupling) ## Best For - nibco enthusiasts ## Why This Product - Trusted nibco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smooth Flow:** Enjoy reduced friction for optimal fluid dynamics. - β€’ **Quality Assurance:** Meets ASTM D2466 and D1784 standards for peace of mind. - β€’ **Seamless Connections:** Effortlessly connect two pipes with precision. - β€’ **Lightweight Durability:** Experience the strength of PVC without the bulk. - β€’ **Versatile Compatibility:** Designed for easy integration with male unthreaded pipes. ## Overview The C429-012 11/4 Coupling is a high-quality PVC fitting designed for connecting two pipes of the same diameter in a straight run. With slip openings for easy attachment to male unthreaded pipes, this coupling offers exceptional corrosion resistance, lightweight strength, and a smooth interior finish to minimize friction and material buildup. It meets rigorous ASTM specifications for reliable performance. ## Description The NIBCO 429 schedule 40 coupling pipe fitting is made of PVC and has slip connections. This coupling fitting connects two pipes going in the same direction with the same diameter to extend a straight run. It has female slip openings for sliding over the ends of male unthreaded pipes. The slip ends connect to pipes with a smooth bore for enhanced flow. This schedule 40 (standard wall) fitting is made of PVC for corrosion resistance, high strength, and less weight than fittings made from metal. It is compatible with schedule 40 PVC pipes and fittings and is suitable for cold-water pressure distribution systems including irrigation, pool and spa, potable water, and chilled water applications. PVC can be connected to other materials such as steel, copper, or cast iron using transition fittings. This fitting provides superior flow to metal because of its smooth interior finish, which reduces friction and inhibits buildup of materials. This fitting meets American Society for Testing and Materials (ASTM) D2466 and D1784 specifications for quality assurance.Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).NIBCO manufactures flow-control products for construction, industrial, fire protection, and irrigation applications. The company, founded in 1904, is headquartered in Elkhart, IN, and meets International Organization for Standardization (ISO) 9001 standards for quality assurance. ## Features - About this item - Coupling for connecting two pipes with the same diameter in a straight run Slip openings for connecting to male unthreaded pipes or fitting PVC for corrosion resistance, high strength, and less weight than fittings made from metal Smooth interior finish for reduced friction and material buildup Meets specifications ASTM D2466 and D1784 for quality assurance ## Images ![C429-012 11/4 COUPLING - Image 1](https://m.media-amazon.com/images/I/51720BEzE9L.jpg) ## Available Options This product comes in different **Size, Number of Items** options. ## Customer Reviews ### ⭐ THIS IS NOT A FREELY SLIDING COUPLING. IT HAS A CENTER BLOCK. *by A***5 on Reviewed in the United States on September 5, 2019* I did not read very well the reviews. This is a NORMAL coupling that you can buy for less than a dollar in any big box store. IT WILL NOT SLIDE OR SLIP FREELY BETWEEN TWO PIPES. You have to remove the center stop, which is the same work you will do with any 1' pvc coupling. I bought the cheap ones at the hardware store, removed the center ridge with a drill and a conical bit. Then, I sanded it (inside) with 150 sandpaper till the pipe will go through snugly but not too loose. I slid it completely over one of the pipes, leaving space to put a slow setting glue (GORILLA PVC R08000 PVC Glue 8 OZ, Clear, or Gorilla Clear PVC PrimaGlue 4oz. both from Amazon) on the exposed end of the pipe. Then, slid the coupling over the glue area to connect and slide over the other, pre-glued pipe (across) to make a bridge or coupling. Worked like a charm! Why don't they make snugly fitting non-stop couplings? Who knows. They are ideal for hard PVC in non bendable situations. ### ⭐ Not a slip coupling *by A***. on Reviewed in the United States on January 18, 2020* Should have read the reviews. Has a ridge in the middle. It’s way overpriced for just a standard pipe coupling ### ⭐ Does not slip / slide over pipe *by C***H on Reviewed in the United States on January 10, 2019* I bought these to slip/slid over an 1 1/2” pipe that I can’t move/flex enough to use a standard coupling.There is (as stated in a previous review) a ridge inside these, and even without the ridge, these couplings do not slide onto a 1 1/2” pipe. They bind up on the pipe. I guess I’ll have to dremel the ridge, and the inside of these so they slide onto the pipe.Expensive 1 1/2” standard couplings, not worth the aggravation of sending back. --- ## 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.be/products/18726872-c429-012-11-4-coupling](https://www.desertcart.be/products/18726872-c429-012-11-4-coupling) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-19*