--- product_id: 63689589 title: "check valve for 19 mm hose, 59416" brand: "whale" price: "₨24879" currency: LKR in_stock: true reviews_count: 13 category: "Whale" url: https://www.desertcart.lk/products/63689589-check-valve-for-19-mm-hose-59416 store_origin: LK region: Sri Lanka --- # One-way flow lock Fits 19mm hose/barb & NPT Durable Nitrile build check valve for 19 mm hose, 59416 **Brand:** whale **Price:** ₨24879 **Availability:** ✅ In Stock ## Summary > 🔄 Keep your flow flawless—never look back! ## Quick Answers - **What is this?** check valve for 19 mm hose, 59416 by whale - **How much does it cost?** ₨24879 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/63689589-check-valve-for-19-mm-hose-59416) ## Best For - whale enthusiasts ## Why This Product - Trusted whale brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Backflow Prevention:** Stops drain back instantly so your system stays efficient and mess-free. - • **Reliable Prime Maintenance:** Keeps your suction or discharge line always ready—no downtime, no hassle. - • **Robust Nitrile Construction:** Engineered for long-lasting durability under demanding marine or industrial conditions. - • **Seamless Inline Installation:** Compact design integrates effortlessly into your pump line—professional-grade performance. - • **Universal Hose Compatibility:** Perfectly fits 19mm (3/4") hoses with barbed inlet and NPT outlet for versatile setups. ## Overview The Whale 59416 check valve is a compact, durable inline valve designed for 19mm hoses, ensuring one-way water flow to maintain prime and prevent backflow. Constructed from resilient nitrile, it fits both barbed and NPT connections, making it ideal for manual or electric pumps in marine and industrial applications. ## Description For use with water. It is up to the user to ensure any other liquids used are compatible. Review: I love it. I love it I love it I ... - I love it. I love it I love it I love it. It's perfect. My new 19mm shower drain pump hose fitted nicely over this check valve it and secured snugly with a lovely shiny jubilee clip on each end. Deeply satisfying and a thing of functional beauty. And what's genius about this is that it lets the water flow out one way, and not back the other. And behold my boat shower tray empties in seconds. Bob is your uncle and fanny is your aunt. Review: Just the job - worked well - fitted an extra bilge pump to single hose. This NRV will prevent back filling ## Features - Check valve reliably maintains prime in a suction or discharge line - Prevents drain back so a line is always ready for pumping - For use with pipes of 3/4 inch and 1 inch diameters - Can be used with manual or electric pumps - Durable Nitrile construction for reliable performance - Designed to fit in-line ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00144AQG4 | | Best Sellers Rank | 71,326 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 196 in Check Valves | | Brand | Whale | | Customer Reviews | 4.4 out of 5 stars 343 Reviews | | Exterior Finish | painted | | Exterior finish | painted | | Global Trade Identification Number | 00766478121905 | | Inlet Connection Size | 19 Millimeters | | Inlet Connection Type | Barb | | Inlet connection size | 19 Millimeters | | Inlet connection type | Barb | | Item Dimensions | 17 x 10 x 4 centimetres | | Item Weight | 0.03 Kilograms | | Item dimensions L x W x H | 17 x 10 x 4 centimetres | | Manufacturer | whale | | Material | other | | Model Number | LV1219 | | Number of Ports | 2 | | Outlet Connection Size | 19 Millimeters | | Outlet Connection Type | NPT | | Part Number | LV1219 | | Size | One Size | | Smart Home Compatibility | Not Smart Home Compatible | | Specification Met | CSA | | Thread Size | 19 mm | | Thread Type | {'inlet.thread.type': 'barbed', 'outlet.thread.type': 'NPT'} | | UPC | 766478121905 | | Unit Count | 1.0 count | | Valve Type | Check Valve | ## Product Details - **Material:** other - **Brand:** Whale - **Item dimensions L x W x H:** 17 x 10 x 4 centimetres - **Exterior finish:** painted - **Inlet connection size:** 19 Millimetres - **Inlet connection type:** Barb - **Outlet connection type:** NPT - **Number of ports:** 2 - **Specification met:** CSA - **Global Trade Identification Number:** 00766478121905 ## Images ![check valve for 19 mm hose, 59416 - Image 1](https://m.media-amazon.com/images/I/412bzSEpk0L.jpg) ![check valve for 19 mm hose, 59416 - Image 2](https://m.media-amazon.com/images/I/41oAErSlAPL.jpg) ![check valve for 19 mm hose, 59416 - Image 3](https://m.media-amazon.com/images/I/41SRMdgN4wL.jpg) ![check valve for 19 mm hose, 59416 - Image 4](https://m.media-amazon.com/images/I/61MeJNTEyQL.jpg) ## Questions & Answers **Q: will this valve fit a 3/4" ID vinyl hose?** A: Yes. But it did not work and I lost about 75 gallons out of my saltwater tank when the power went out. Only took about 3 min. For half of my tank to empty.. I would find a nicer piece if i were looking. **Q: How does this fit both 1" & 3/4" pipe? From the pictures I don't see any way to support multiple diameters.** A: The smooth is 3/4 the ridged is 1 inch. **Q: Will this work to keep water from draining back into my washing machine?** A: I will say it does. I use it to keep water from draining in my dishwasher machine **Q: Can this be used with a dishwasher drain hose, to prevent backflow from the garbage disposal?** A: Provide an easy way to maintain prime in a suction or discharge line. Suitable for use with manual or electric pumps ## Customer Reviews ### ⭐⭐⭐⭐⭐ I love it. I love it I love it I ... *by S***D on 22 June 2018* I love it. I love it I love it I love it. It's perfect. My new 19mm shower drain pump hose fitted nicely over this check valve it and secured snugly with a lovely shiny jubilee clip on each end. Deeply satisfying and a thing of functional beauty. And what's genius about this is that it lets the water flow out one way, and not back the other. And behold my boat shower tray empties in seconds. Bob is your uncle and fanny is your aunt. ### ⭐⭐⭐⭐⭐ Just the job *by R***N on 13 August 2021* worked well - fitted an extra bilge pump to single hose. This NRV will prevent back filling ### ⭐⭐⭐⭐⭐ Works fine *by A***P on 18 February 2020* It just works ## Frequently Bought Together - Whale LV1219 Non-Return Inline Valve, for Use with ¾-Inch and 1-Inch Diameter Pipes, Nitrile Construction , Black - Seachoice 3-Way Y Fitting, Fits 3/4 in. ID Hose, Black Plastic - 3/4 inch Check Valve, 3/4 inch Boat Bilge Pump Check Valve, 3/4" in-line one way valve, 3/4" Non Return Valve Green --- ## 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.lk/products/63689589-check-valve-for-19-mm-hose-59416](https://www.desertcart.lk/products/63689589-check-valve-for-19-mm-hose-59416) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-07-28*