Wilo WJ 301 (401) water pump Diffuser + Venturi Ejector (Godzilla kit)

Godzilla diffuser for pumping unit Wilo WJ 301 (401), Sprut aujs 110, Marina CAM 95/25,

Internal cavity size (under the impeller) 138 mm,
External dimension 165 mm,
Total height 150mm with venturi tube

The wheel's intake pipe outlet is 44.5 mm.
The intake pipe's outer diameter is 29 mm.