Presair - Air Button, White Flush Mount, Gunite, B340WA
PresAirTrol Air Button, white color. Low volume air button has a 1-1/2"" wide flush flange and button and requires a 1-1/4"" hole size for mounting. For use in gunite hot tubs or spas - great for surface mount concrete deck applications. The round flush hot tub air button operates with 1/8"" air hose, sold separately. Includes lock nut for mounting.