--- product_id: 4570771 title: "Orbit 51016 3/4\" FPT Brass Manual Anti-Siphon Sprinkler Valve" brand: "orbit" price: "$98.05" currency: USD in_stock: true reviews_count: 8 category: "Orbit" url: https://www.desertcart.us/products/4570771-orbit-51016-3-4-fpt-brass-manual-anti-siphon-sprinkler store_origin: US region: United States of America --- # Precise flow control Heavy-cast brass durability Anti-siphon protection Orbit 51016 3/4" FPT Brass Manual Anti-Siphon Sprinkler Valve **Brand:** orbit **Price:** $98.05 **Availability:** βœ… In Stock ## Summary > πŸ’§ Secure your garden’s hydration with brass-built precision! ## Quick Answers - **What is this?** Orbit 51016 3/4" FPT Brass Manual Anti-Siphon Sprinkler Valve by orbit - **How much does it cost?** $98.05 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4570771-orbit-51016-3-4-fpt-brass-manual-anti-siphon-sprinkler) ## Best For - orbit enthusiasts ## Why This Product - Trusted orbit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last πŸͺ™:** Heavy-cast brass body engineered for rugged outdoor use and long-term reliability. - β€’ **Smooth Flow Control πŸ”§:** Easy-to-rotate handle for precise irrigation adjustments, ensuring optimal watering efficiency. - β€’ **Contamination Blocker πŸ›‘οΈ:** Prevents backflow to keep your water supply pristine and safe. - β€’ **Installation Flexibility πŸš€:** Designed for above-ground riser mounting, meeting strict anti-siphon code requirements. - β€’ **Trusted Quality & Performance ⭐:** Top-rated by pros with 4.5 stars and proven leak-free operation under pressure. ## Overview The Orbit 51016 3/4" FPT Brass Manual Anti-Siphon Sprinkler Valve is a robust outdoor irrigation valve designed to prevent water contamination by blocking backflow. Featuring a heavy-cast brass body and an easy-to-use flow control handle, it ensures precise water management and durability. Ideal for cold water use, it meets anti-siphon standards and is highly rated for reliability and leak-free performance. ## Description Product Description The manual anti-siphon valve features a combination of an inline forward flow valve and an atmospheric vacuum break which prevents water flowing from the irrigation system into the culinary system. This type of valve is most common in California. In other states it is common for a single backflow prevention device to protect the entire system at the mainline point of connection. In order to function properly, an anti-siphon valve should be installed at least 12 inches above the highest head in the zone which it controls. This typically requires the anti-siphon valve to be installed above-ground on risers. The anti-siphon valve features an easy-to-rotate flow control handle. We recommend that you use a steel sprinkler key for hard-to-reach places and PVC-Lock fittings for fast, glue-free installation. For outdoor irrigation use with cold water only. From the Manufacturer The Brass Anti-Siphon Control Valve is designed to prevent contaminants from entering the main water supply. It has a heavy-cast brass body and makes precise flow adjustments. Review: good quality valve a bit pricey - very beefy working well no leaks and easy to control. threads were good for sand cast products Review: Nice valve, good price - Seems like a really well built valve for the price. I bought one to replace a nearly identical valve that feeds our pool filling line. The only difference is that the old valve had a union built-in on the output side. Not sure how long the existing valve had been there, but probably at least 20 or 30 years. The anti-siphon valve died on the existing valve, so water just spewed out of the anti-siphon cap and I couldn't get it to unscrew to see if the valve was repairable. Anyway, this thing feels very solidly built and seems to work like you'd expect. My only complaint would be that the handle is somewhat hard to turn by hand, as it is designed to be turned by one of those sprinkler control keys . ## Features - Designed to prevent contaminants from entering the household water supply - Full flow-control and anti-siphon valve - Heavy-cast brass body - For outdoor use with cold water only ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00004S22H | | Best Sellers Rank | #20,700 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #56 in Automatic Irrigation Sprinkler Heads | | Brand Name | Orbit | | Customer Reviews | 4.5 4.5 out of 5 stars (335) | | Exterior Finish | Brass | | Global Trade Identification Number | 00046878510166 | | Inlet Connection Size | 0.75 Inches | | Inlet Connection Type | Female Iron Pipe | | Item Dimensions | 12.38 x 4.5 x 4.75 inches | | Item Type Name | Anti-Siphon Control Valve | | Item Weight | 1.75 Pounds | | Manufacturer | Orbit | | Material Type | Brass | | Model Number | 51016 | | Outlet Connection Size | 0.75 Inches | | Outlet Connection Type | FPT | | Size | 0.75 Inch | | Specification Met | Anti-Siphon Valve Standard | | Thread Size | 3/4 inch | | Thread Type | FPT | | UPC | 046878510166 | | Unit Count | 1.00 Count | | Valve Type | Anti-Siphon Valve | ## Product Details - **Brand:** Orbit - **Exterior Finish:** Brass - **Global Trade Identification Number:** 00046878510166 - **Inlet Connection Size:** 0.75 Inches - **Inlet Connection Type:** Female Iron Pipe - **Item dimensions L x W x H:** 12.38 x 4.5 x 4.75 inches - **Material:** Brass - **Outlet Connection Size:** 0.75 Inches - **Outlet Connection Type:** FPT - **Specification Met:** Anti-Siphon Valve Standard ## Images ![Orbit 51016 3/4" FPT Brass Manual Anti-Siphon Sprinkler Valve - Image 1](https://m.media-amazon.com/images/I/81qaz667sGL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ good quality valve a bit pricey *by G***G on July 15, 2025* very beefy working well no leaks and easy to control. threads were good for sand cast products ### ⭐⭐⭐⭐⭐ Nice valve, good price *by J***S on September 30, 2008* Seems like a really well built valve for the price. I bought one to replace a nearly identical valve that feeds our pool filling line. The only difference is that the old valve had a union built-in on the output side. Not sure how long the existing valve had been there, but probably at least 20 or 30 years. The anti-siphon valve died on the existing valve, so water just spewed out of the anti-siphon cap and I couldn't get it to unscrew to see if the valve was repairable. Anyway, this thing feels very solidly built and seems to work like you'd expect. My only complaint would be that the handle is somewhat hard to turn by hand, as it is designed to be turned by one of those sprinkler control keys . ### ⭐⭐⭐⭐⭐ Brass *by R***A on December 30, 2025* Easy to install ## Frequently Bought Together - Orbit Sprinkler System 3/4-Inch Brass Anti-Siphon Control Valve 51016 - Orbit 57253 3-Valve Heavy Duty Preassembled Manifold - Valve Box Platform for Orbit 12" Sprinkler Control Boxes --- ## 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.us/products/4570771-orbit-51016-3-4-fpt-brass-manual-anti-siphon-sprinkler](https://www.desertcart.us/products/4570771-orbit-51016-3-4-fpt-brass-manual-anti-siphon-sprinkler) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*