The A645 hose box is designed for use in commercial applications. This box is fully recessed and constructed of heavy gauge, type 304, stainless steel. The interior of this box is bead blasted to provide a clean interior. The front flange is polished. This box utilizes a non-freeze, lead-free, anti-siphon self-draining wall hydrant with vandal resistant integral vacuum breaker. This wall hydrant features a 15” extension to move the valve inlet to the building interior. The valve inlet connection is combination 3/4’’ female solder x 3/4” male pipe thread. The valve outlet is a 3/4’’ male hose thread. This construction provides a very durable unit.