MIFAB® HY-3500-NPB Series encased type, self draining. moderate climate, low lead, wall hydrant with A.S.S.E. 1011 certified anti siphon vandal resistant integral vacuum breaker.Hydrant assembly complete with one piece neoprene plunger to control the flow function, hardened bronze operating stem, heavy duty chrome plated bronze head casting, polished chrome plated face plate and satin finished nickel bronze box with hinged locking cover. Operating key furnished with each hydrant.