4 In. Anti-Siphon Outdoor Faucet 1/2 In. Mip/Sweat Connection & 3/4 In. Hose Bib | eBay
The Plumber's Choice 10 in. Anti-Siphon Sillcock Frost Free Outdoor Faucet with 1/2 in. MIP/Sweat Connection and 3/4 in. Hose Bib SILLVAC10 - The Home Depot
EMIHO Anti Siphon Valve, Hose Bib Vacuum Breakers Set, 3/4 Inch GHT Hose Backflow Preventer for RV Garden Spigot, Brass Connection Backflow Preventer Connector Includes Tape and Extra Gaske, 4 Pack - Amazon.com
AQUOR 1/2 in. NPT Inlet and 3/4 in. Hose Connector 12 in. House Hydrant V1+ Modern Outdoor Wall Faucet HHP012 - The Home Depot
SUNGATOR Anti Siphon Valve, Hose Bib Vacuum Breakers Set, 3/4 Inch Backflow Preventer for Garden Spigot, RV, Solid Brass Anti-Backflow Valve with Sealing Tape (4-Pack) - Amazon.com
SpigotMaster SPGTM-3 Converts NIBCO & Canadian Anti-Siphon Valves to Garden Hose | eBay
Orbit Drip Irrigation Anti-siphon Valve for Hose Bib Faucet Water Spigot, 61256D - Walmart.com
Amazon.com: Spigotmaster ~ SM01 Vacuum Breaker Adapter~ Turns an Arrowhead Anti-Siphon Hose Bib Into a Straight Through Connection. Replaces 1019-a-486BFP & Fits: 482BFP(1, SM01) : Automotive
Orbit Hose Bib Anti-Siphon Valve 67750 - The Home Depot
The Plumber's Choice 10 in. Anti-Siphon Sillcock Frost Free Outdoor Faucet with 1/2 in. MIP/Sweat Connection and 3/4 in. Hose Bib SILLVAC10 - The Home Depot