Snap Cap Diffuser 3"

Snap-Cap Diffuser, 3" Aeration » Air Diffuser Tubing » This coarse bubble diffuser is very clog resistant. It uses a snap-on flexible diaphragm with built-in check valve. Handles flow rates up to 10 cfm @ 12" H2O loss. About 2" high x 35/32" diameter with a 3/8" MNPT and a 1/2" MNPT adapter included.