--- product_id: 66781358 title: "21mm Valves (2-Pack)" brand: "habitech" price: "£17.34" currency: GBP in_stock: true reviews_count: 8 category: "Habitech" url: https://www.desertcart.co.uk/products/66781358-21mm-valves-2-pack store_origin: GB region: United Kingdom --- # 3/4 inch tubing fit Smooth, fully adjustable flow control Leak-proof up to 45 PSI 21mm Valves (2-Pack) **Brand:** habitech **Price:** £17.34 **Availability:** ✅ In Stock ## Summary > 💧 Turn the flow your way—control water like a pro! ## Quick Answers - **What is this?** 21mm Valves (2-Pack) by habitech - **How much does it cost?** £17.34 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/66781358-21mm-valves-2-pack) ## Best For - habitech enthusiasts ## Why This Product - Trusted habitech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatility Unleashed:** Ideal for ponds, aquariums, RVs, and multiple irrigation zones—customize your water system with confidence. - • **Durable Leak-Free Seal:** Non-corrosive, chemical and heat resistant design ensures a watertight connection under pressures up to 45 PSI. - • **Precision Flow Mastery:** Effortlessly regulate water flow with a simple twist—perfect for hydroponics, drip irrigation, and aquatic setups. - • **Stress-Free Installation:** Use our sizing chart for a perfect clamp-free fit on 3/4 inch tubing—no guesswork, just seamless setup. - • **Compact & Smooth Operation:** Engineered with acetal material for a silky-turning valve that won’t stick or wear out like PVC alternatives. ## Overview This 2-pack of 3/4 inch inline barbed ball valves offers precise, smooth, and durable water flow control for irrigation, aquatic, and RV systems. Made from high-quality acetal plastic, these valves provide a leak-proof seal up to 45 PSI and fit tubing with 0.810-0.820 inch inside diameter, ensuring versatile and reliable performance across multiple applications. ## Description Habitech 2-Pack In-Line Barbed Ball Valve for 3/4 Inch Tubing - Regulate and Shut-Off/On Water Flow: desertcart.com: Industrial & Scientific Review: Work well with black irrigation PE line - These work exceptionally well with 3/4" black polyethylene irrigation feed/distribution line bought at your local big box store, strongly suggest using Murray cinch clamps. Review: Good valves - No leakage and a great price they work as they should no problems so far ## Features - Complete Flow Control: 3/4 inch inline ball valves (2 Pack) are the perfect way to regulate the water flow of your aquatic, hydroponic, or drip irrigation systems with a simple turn of the knob. Slip your tubing onto the barbed ends of this shut-off valve coupling to control, disperse, slow, divert or completely stop water flow. - Fully Adjustable: Adjust the barb valve anywhere from full-open to full-stop. Easy to install and use with clear on and off markings. Compactly sized and smooth to turn, these quality acetal 3/4" barb ball valves won't stick like PVC ball valves. - Versatile: Customize a secondary water zone, create individual drip-line control within your drip irrigation system, use as tank valves, drain valves, pex valves, return valves, drip irrigation valve or in any situation where fluid restriction is needed. Also use this 3/4 in. shutoff ball valve for pond water applications, aquarium plumbing, RV camper and trailers, pump return line, canister filter, protein skimmer, calcium reactor, phosban reactor, saltwater applications, aquaponics. - Leak-Free Seal: These non-corrosive plastic 3/4 flow valve fittings are guaranteed to provided a secure, watertight connection that handles an operating pressure of up to 45 PSI. Constructed to be heat, chemical and wear-resistant assure long term reliability of connections. - Check Our Stress-Free Sizing Chart: Confidently install these barbed fittings without clamps by using our sizing chart to get the perfect fit (see photo). This 21mm valve fits 3/4" tubing with 0.810 - 0.820 Inside Diameter (ID). Please note there is no standard sizing for drip irrigation tubing in the USA so be sure to check the inside diameter of your tubing to select the compatible valve size. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07C5FVSQB | | Best Sellers Rank | #6,283 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Ball Valves | | Brand Name | Habitech | | Connector Type | Slip | | Customer Reviews | 4.6 4.6 out of 5 stars (1,644) | | Exterior Finish | Plastic | | Inlet Connection Size | 0.75 Inches | | Inlet Connection Type | Barb | | Item Dimensions | 4 x 1.5 x 2.25 inches | | Item Weight | 0.12 Pounds | | Manufacturer | Antelco | | Material Type | Plastic | | Maximum Pressure | 45 Pound per Square Inch | | Number of Pieces | 2 | | Number of Ports | 2 | | Outlet Connection Size | 0.75 Inches | | Outlet Connection Type | Barb | | Size | 21mm (3/4" Tube .810 - .820 ID) | | UPC | 600151081646 | | Unit Count | 2 Count | | Valve Type | Ball Valve | ## Product Details - **Brand:** Habitech - **Exterior Finish:** Plastic - **Inlet Connection Size:** 0.75 Inches - **Inlet Connection Type:** Barb - **Item dimensions L x W x H:** 4 x 1.5 x 2.25 inches - **Material:** Plastic - **Maximum Operating Pressure:** 45 Pound per Square Inch - **Number of Ports:** 2 - **Outlet Connection Size:** 0.75 Inches - **Outlet Connection Type:** Barb ## Images ![21mm Valves (2-Pack) - Image 1](https://m.media-amazon.com/images/I/61sKEGup0dL.jpg) ![21mm Valves (2-Pack) - Image 2](https://m.media-amazon.com/images/I/71RvS5bqOhL.jpg) ![21mm Valves (2-Pack) - Image 3](https://m.media-amazon.com/images/I/51RKOGbcYqL.jpg) ![21mm Valves (2-Pack) - Image 4](https://m.media-amazon.com/images/I/61eYFy49mWL.jpg) ![21mm Valves (2-Pack) - Image 5](https://m.media-amazon.com/images/I/6184SxTc54L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Work well with black irrigation PE line *by 3***O on February 3, 2026* These work exceptionally well with 3/4" black polyethylene irrigation feed/distribution line bought at your local big box store, strongly suggest using Murray cinch clamps. ### ⭐⭐⭐⭐⭐ Good valves *by M***S on April 11, 2026* No leakage and a great price they work as they should no problems so far ### ⭐⭐⭐⭐⭐ Shut off valve *by J***S on January 5, 2026* Great value for the money excellent quality no leaks very durable and easy to put together ## Frequently Bought Together - Habitech 2-Pack In-Line Barbed Ball Valve for 3/4 Inch Tubing - Regulate and Shut-Off/On Water Flow - TotalPond Vinyl Tubing, 1/2-inch - VIVOSUN 800GPH Submersible Pump(3000L/H, 24W), Ultra Quiet Water Fountain Pump with 10ft. High Lift with 6.5ft. Power Cord, 3 Nozzles for Fish Tank, Pond, Aquarium, Statuary, Hydroponics 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.co.uk/products/66781358-21mm-valves-2-pack](https://www.desertcart.co.uk/products/66781358-21mm-valves-2-pack) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*