LASCO 05-1771 Backflow Preventer with Fine Thread, Self Draining
LASCO 05-1771 Backflow Preventer, Fine Thread, Self Draining. Replacement, Backflow Preventer, With Fine Threads, Self Draining, And Brake-Off Set Screw. Backflow Preventer. Arrowhead Brand. Fine thread. Frost Proof, Self Draining. Replacement unit to restore and refresh.