--- product_id: 241558652 title: "Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic" brand: "midline valve" price: "108 zł" currency: PLN in_stock: true reviews_count: 8 category: "Midline Valve" url: https://www.desertcart.pl/products/241558652-midline-valve-4i2t112-pvc-inline-check-valve-for-backflow-prevention store_origin: PL region: Poland --- # 150 PSI max pressure Spring-loaded backflow prevention 1.5'' solvent connections Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic **Brand:** midline valve **Price:** 108 zł **Availability:** ✅ In Stock ## Summary > 🔧 Keep your flow flawless — the valve that means business! ## Quick Answers - **What is this?** Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic by midline valve - **How much does it cost?** 108 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/241558652-midline-valve-4i2t112-pvc-inline-check-valve-for-backflow-prevention) ## Best For - midline valve enthusiasts ## Why This Product - Trusted midline valve brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Installation:** Works flawlessly both vertically and horizontally for ultimate flexibility. - • **Durable PVC Construction:** Rust and corrosion-resistant for long-lasting performance in any environment. - • **Certified Quality Assurance:** ISO 9002 and ASTM approved for trusted, industry-standard reliability. - • **Leak-Free Solvent Connections:** Ensures a secure, drip-proof fit for worry-free plumbing. - • **Robust Stainless Steel Spring:** Prevents backflow with precision, protecting your system integrity. ## Overview The Midline Valve 4I2T112 is a high-performance PVC inline check valve designed for backflow prevention in cold water systems. Featuring leak-free 1.5-inch solvent connections and a stainless steel spring, it withstands pressures up to 150 PSI and temperatures from 41° to 140°F. Certified to ISO 9002 and ASTM standards, this valve offers versatile installation options and superior corrosion resistance, making it ideal for landscaping, pools, aquariums, and more. ## Description Buy Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic: Check Valves - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Works great! - I used this for a drain line (low pressure) so once I removed the spring with 1 screw it worked great! Seems high quality and working well! Review: Great quality - Great construction and what a life saver and way less than discounted hardware stores. Used on water fall pump and recommend ## Features - Leak-Free: Features Secure, Leak-Free Solvent Connections - Stainless steel Spring Loaded Check: PreVents BackFlow in Your Cold Water Pipes; Not RecommEnded for Potable Water - Specifications: Cracking Pressure @ .5 PSI; 150 PSI at 73°; Temperature Range 41°- 140°; ISO 9002 Approved Manufacturer; ANSI.B1.20.1 and ASTM F1970 Approved - Ideal for Flow Control In: Landscaping Sprinklers, Pools, Water Park, Aquarium, ETC. Can Be Installed Vertically and Horizontally. - PVC Piping: PVC Piping Systems Feature Improved PerFormance, Increased Safety, and Better Rust and Corrosion Resistance when CompaRed with steel Piping Systems ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08CY9F4YL | | Best Sellers Rank | #12,448 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Check Valves | | Brand Name | Midline Valve | | Customer Reviews | 4.5 4.5 out of 5 stars (517) | | Exterior Finish | Plastic | | Inlet Connection Size | 1.5 Inches | | Inlet Connection Type | Solvent | | Item Dimensions | 2 x 1.5 x 2 inches | | Item Type Name | 1-1/2'' Solvent Connections; White Plastic | | Manufacturer | Midline Valve | | Material Type | Stainless Steel | | Maximum Pressure | 150 Pound per Square Inch | | Model Number | 4I2T112 | | Number of Ports | 2 | | Outlet Connection Size | 1.5 Inches | | Outlet Connection Type | Solvent | | Size | 1-1/2 in. | | Specification Met | ASTM, ansi | | UPC | 804595436981 | | Unit Count | 1.0 Count | | Valve Type | Check Valve | ## Product Details - **Brand:** Midline Valve - **Exterior Finish:** Plastic - **Inlet Connection Size:** 1.5 Inches - **Inlet Connection Type:** Solvent - **Item dimensions L x W x H:** 2 x 1.5 x 2 inches - **Material:** Stainless Steel - **Maximum Operating Pressure:** 150 Pound per Square Inch - **Number of Ports:** 2 - **Outlet Connection Size:** 1.5 Inches - **Outlet Connection Type:** Solvent ## Images ![Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic - Image 1](https://m.media-amazon.com/images/I/51+ceaVL-vL.jpg) ![Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic - Image 2](https://m.media-amazon.com/images/I/61BL5nPzQTL.jpg) ![Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic - Image 3](https://m.media-amazon.com/images/I/61e-6FqOIuL.jpg) ![Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic - Image 4](https://m.media-amazon.com/images/I/7159U7BJ5TL.jpg) ![Midline Valve 4I2T112 PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic - Image 5](https://m.media-amazon.com/images/I/71GNb9VaEDL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Back flow in my kitchen sink which is very slow moving no pressure water, will this valve allow my sink to drain?** A: No - this will not work on a drain. It needs pressure to open for the flow. **Q: Will it work for pool pump?** A: Yes, I purchased this to keep my in-line chlorinator from flowing back into my heater. It does require gluing PVC fittings for the hose adapters on either side. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! *by B***E on December 1, 2025* I used this for a drain line (low pressure) so once I removed the spring with 1 screw it worked great! Seems high quality and working well! ### ⭐⭐⭐⭐⭐ Great quality *by B***B on January 25, 2026* Great construction and what a life saver and way less than discounted hardware stores. Used on water fall pump and recommend ### ⭐⭐⭐⭐⭐ Works like I imagined it would be *by M***Y on April 3, 2026* It's spring loaded close. The spring tension is more than I need. But, good thing the spring is removable. ## Frequently Bought Together - Midline Valve PVC Inline Check Valve for Backflow Prevention 1-1/2'' Solvent Connections White Plastic (4I2T112) - Fibropool Swimming Pool Diverter Valve - 1 1/2 Inch - 3 Way - Replacement Slip Valve for Pools and Spas White - Wantmatch 1-1/2" PVC Union Pipe Fitting,PVC Adapter(Socket x Socket),EPDM O-Ring,2 Pack --- ## 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.pl/products/241558652-midline-valve-4i2t112-pvc-inline-check-valve-for-backflow-prevention](https://www.desertcart.pl/products/241558652-midline-valve-4i2t112-pvc-inline-check-valve-for-backflow-prevention) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-10*