Standard model in ABS for light mounting without too much stress.
The hose sticks into the wall bushing with a compatible adhesive (Griffon WDF-05).
Available in diameters 25, 32, 40, 50, 63, 75, 90 and 110 mm.
Stainless steel wall penetration: the only wall penetration on the market allowing its mounting on a tank or a filter which does not allow access from the inside!