--- product_id: 302975970 title: "1/2 Inch Brass Valve with Plastic Float Water Float Valve with Adjustable Arm Automatic Fill Float Ball Valve for Water Tank Fountains Livestock Waterer" brand: "macgoal" price: "£16.32" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/302975970-1-2-inch-brass-valve-with-plastic-float-water-float store_origin: GB region: United Kingdom --- # Brass valve with leak-proof rubber washer Adjustable arm for precise water level control 1/2 inch NPT thread for universal fit 1/2 Inch Brass Valve with Plastic Float Water Float Valve with Adjustable Arm Automatic Fill Float Ball Valve for Water Tank Fountains Livestock Waterer **Brand:** macgoal **Price:** £16.32 **Availability:** ✅ In Stock ## Summary > 💧 Keep your water flow flawless and your setup stress-free! ## Quick Answers - **What is this?** 1/2 Inch Brass Valve with Plastic Float Water Float Valve with Adjustable Arm Automatic Fill Float Ball Valve for Water Tank Fountains Livestock Waterer by macgoal - **How much does it cost?** £16.32 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/302975970-1-2-inch-brass-valve-with-plastic-float-water-float) ## Best For - macgoal enthusiasts ## Why This Product - Trusted macgoal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable brass valve paired with a resilient plastic float ensures long-term, heavy-duty performance without corrosion. - • **Leak-Free Guarantee:** Rubber washer seals tightly to prevent any drips or water waste—saving you money and hassle. - • **Versatile Application:** Ideal for water tanks, fountains, livestock waterers, ponds, and even toilet cisterns—one valve, endless uses. - • **Effortless Installation:** Standard 1/2 inch NPT threading makes setup quick and compatible with most plumbing systems. - • **Precision Water Control:** Easily adjust water levels with a simple twist of the wingnut or float arm for perfect fill every time. ## Overview This 1/2 inch brass float valve features a durable brass body with a green plastic float and a leak-proof rubber washer. Designed for easy installation and adjustable water level control, it’s perfect for water tanks, fountains, livestock waterers, and more. Its heavy-duty construction ensures reliable, long-lasting performance across multiple applications. ## Description Metal float valve features: Simple to install and adjust easily. Same basic principle as your flush toilet - fills when below level, stops when at level. It is perfect for water trough, water pump, water tank, fountain, pond, toilet cistern, livestock and poultry water dispensers, saving you a lot of time and effort. Specifications: - Material: Brass valve with plastic float - Float Color: Green - Product Weight: 0.5 lbs Package Contents: - 1 x Copper float valve ## Features - NO LEAK: Rubber washer ensures a tight, leak free kit; - DURABLE MATERIAL: This water float valve features high quality brass valve with a plastic float; heavy duty with study structure; - EASY TO USE: 1/2" thread, very easy to install and adjust water level, you can adjust the water level by rotating the metal wingnut or the green float; - MULTIPLE USES: Works great for water trough, water pump, water tank, fountain, pond, toilet cistern, livestock and poultry water dispensers, etc; - WE ARE HERE TO HELP: We always stand behind our products, reach out to us if you need any help with this 1/2 inch copper valve. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08TBTXNNC | | Best Sellers Rank | #41,853 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #57 in Float Valves | | Brand Name | MACGOAL | | Customer Reviews | 4.1 4.1 out of 5 stars (378) 4.1 out of 5 stars | | Exterior Finish | Brass | | Included Components | Float Valve | | Inlet Connection Size | 0.5 Inches | | Inlet Connection Type | ball | | Item Dimensions | 7.87 x 2.95 x 1.77 inches | | Item Type Name | Float Valve | | Manufacturer | Anyangmenglian | | Material Type | Brass, Plastic | | Number Of Pieces | 1 | | Number Of Ports | 1 | | Outlet Connection Size | 0.5 Inches | | Outlet Connection Type | FNPT | | Size | 2.95 x 7.87 x 1.77 inches | | Thread Size | 1/2 inches | | Thread Type | NPT | | Unit Count | 1.0 Count | | Valve Type | Float Valve | ## Product Details - **Brand:** MACGOAL - **Exterior Finish:** Brass - **Inlet Connection Size:** 0.5 Inches - **Inlet Connection Type:** ball - **Item dimensions L x W x H:** 7.87 x 2.95 x 1.77 inches - **Manufacturer:** Anyangmenglian - **Material:** Brass, Plastic - **Number of Ports:** 1 - **Outlet Connection Size:** 0.5 Inches - **Outlet Connection Type:** FNPT ## Images ![1/2 Inch Brass Valve with Plastic Float Water Float Valve with Adjustable Arm Automatic Fill Float Ball Valve for Water Tank Fountains Livestock Waterer - Image 1](https://m.media-amazon.com/images/I/61dJ6VwK0cL.jpg) ## Questions & Answers **Q: Have you fixed your thread fitment issue?** A: I used a standard NPT brass nipple instead of the one included with filler valve. Used bunch of heavy duty Teflon tape and it sealed well. No leaks after months of service. **Q: Temperature max?** A: No specific answers. To be safe I would just figure the maximum theoretical ambient air temperature plus 10-15°. So on 110°F day in the sun I’d figure 125°f as an extreme threshold **Q: What is the flow rate? How many gallons per minute will it flow?** A: I have no idea. I have it dripping from a holding tank **Q: Is the plastic BPA free ?** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Recommended *by on Reviewed in the United States November 18, 2025* Works perfectly keeping my fish pond full. ### ⭐⭐⭐⭐⭐ The Best Float Ever! *by on Reviewed in the United States June 21, 2021* After trying many different brands this one wins hands down! Although our pond pump came with a float-fill device it did not work properly. During hot summer days we were always topping up our pond by hand.This one works perfectly. The fitting is made of quality brass and the float of durable plastic. So pleased with this product! ### ⭐⭐⭐⭐⭐ Agua *by on Reviewed in the United States January 19, 2026* Excelente producto ## Frequently Bought Together - MACGOAL 1/2 Inch Brass Valve with Plastic Float Water Float Valve with Adjustable Arm Automatic Fill Float Ball Valve for Water Tank Fountains Livestock Waterer - Litorange 2 Pack Lead-Free Brass Garden Hose Threaded 3/4" GHT to 1/2 NPT Fitting Connect, Green Thumb Quick Swivel Connector Adapter, Double Female Thread 3/4" x 1/2" NPT Pipe - 2 Pack 1/2 Inch Float Ball Valve, Adjustable Arm for Livestock Water Trough, Aquariums, Hydroponics - Automatic Fill and Control Water Level --- ## 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.co.uk/products/302975970-1-2-inch-brass-valve-with-plastic-float-water-float](https://www.desertcart.co.uk/products/302975970-1-2-inch-brass-valve-with-plastic-float-water-float) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-20*