Material: Aluminium & Acrylic & Ceramics
Minimum working pressure: 0.15mpa(The head of the External CO2 Diffuser is made of ceramic through firing. Compared to ordinary built-in diffuser, it requires higher pressure to achieve the same effect.)
3 sizes available, M for 12/16mm hose, L for 16/22mm hose and XL for 19/25mm hose.
Diffuser head replaceable.