Sloan naval 110 xyv yg factory set (3.5gpf) exposed water closet flushometer for floor mounted or wall hung 1-1/2″ top spud bowls with extended bumper on angle stop (for seat with cover),less vacuum breaker. Especially suited for harsh water conditions. ultra high copper,low zinc brass castings for dezincification and salt water resistance extended bumper on angle stop for seat with cover adjustable tailpiece handle packing,stop seat and vacuum breaker molded from permex rubber compound for chloramine resistance ada compliant metal oscillating non-hold-open handle vandal resistant stop cap 1″ i.p.s. Screwdriver bak-chek angle stop stamped wall flange valve less vacuum breaker self-cleaning xpelor bypass spud coupling and flange for 1″ top spud less vacuum breaker angle stop extended bumper