SAWAS-WTE (ATC 63mm x 1000mm Tube Diffuser) – This 2″ tubular diffuser features a Curved EPDM membrane with fine bubble perforation and an ISO G3/4″ F threaded connection. Available in three perforation lengths: 500mm, 750mm, and 1000mm, with a perforation size of 1.0-1.5 mm.