Photo 1 of 
Everbilt
1/2 in. x 3/4 in. x 12 in. MPT/SWT x MHT Brass Anti-Siphon Frost Free Sillcock Valve with Multi-Turn Operation

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Photo 1 of 
Everbilt
1/2 in. x 3/4 in. x 12 in. MPT/SWT x MHT Brass Anti-Siphon Frost Free Sillcock Valve with Multi-Turn OperationPhoto 2 of 
Everbilt
1/2 in. x 3/4 in. x 12 in. MPT/SWT x MHT Brass Anti-Siphon Frost Free Sillcock Valve with Multi-Turn Operation