Liner Eyeball Inlet with Back Nut - 1.5" / 2" - 4.5 to 7 m3/h

1.5" / 2" Liner Eye ball inlet with back nut 

Female plain 1.5" socket - Male 2" thread 

1.5" pipe can be glued direct in the back of the fitting or a 2" threaed socket could be use to screw onto the 2" male thraed. 

Eyeball can be notched out to give better flow rate