1/2"x12 ANTSPN FF SLCK IP&CU

Everbilt anti-siphon frost proof Sillcock assure protection against freezing and undesirable back siphoning. Because they're frost proof, they can stop outside hydrants from freezing and bursting the pipes. Plus, the anti-siphon feature protects against water siphoning back to contaminate the potable water system. Also, unlike anti-siphon attachments, which must be manually drained to prevent freezing, the integral anti-siphon design is self-draining.|Durable brass construction|Built-in vacuum breaker eliminates back flow|3/4 in. MIP or 1/2 in. FIP inlet connection|3/4 in. hose thread outlet fits most 3/4 in. garden hoses|Integrated flange designed to cover the hole into the home