3/4 Brass Anti-Siphon Valve, Faucet Valves - Canada

CMI 3/4 in. Anti-Siphon Brass Control Valve 51016-BH - The Home Depot

Orbit 3/4 in. Brass Anti-Siphon Control Valve 51016 - The Home Depot

CMI 3/4 in. Anti-Siphon Brass Control Valve 51016-BH - The Home Depot

466PW-075Y : ARROWHEAD BRASS & PLUMBING 3/4in Brass Anti-Syphon Valve With Wheel Handle Without Union 466PW-075Y

LF288A - Watts

Sharkbite 1/2in PTC T x 3/4in MHT Anti Siphon Brass Sillcock 24638LF - Acme Tools

Midline Valve 84343 Sillcock Pipe Chrome Plated Brass Body Frost Anti-Siphon with Integral Vacuum Breaker 1/2 inch MIP/Sweat Connection and 3/4 inch Hose Bib, 12 : Patio, Lawn & Garden

Zurn Z1341XL Rough-Bronze Wall Faucet with External Vacuum Breaker

Orbit 57623 3/4 FPT 100 Series Anti-Siphon Automatic Sprinkler Valve with Flow Control : Hydraulic Valves : Patio, Lawn & Garden

Anti-Siphon Valves & Fittings - Marine Parts Source