The Zurn Z1320 encased, ecolotrol, "anti-siphon", automatic draining wall hydrant for flush installation. Complete with integral backflow preventer, copper casing, all bronze interior parts with 1/2" turn ceramic disc cartridge and combination 3/4" [19] female solder and 3/4" [19] male pipe thread inlet. Stainless steel box and hinged cover with operating key lock and "WATER" stamped on the cover.