990S, in/out distributor head with a 1.05" distributor ( riser pipe ) opening.
Includes distributor oring and top of tank oring.
Piping connections on 1" standard pipe thread female.
Is molded to use "twist on" top distributors ( like our MD1203 ).

Clack Corporation has introduced a new 1", 990S, in/out distributor head with a 1 " riser. The distributor head is molded of rugged composite plastic.
The distribution head is designed for single in-out applications on simple filters such as sediment removal, taste, odor or pH neutralization. This economical head fits onto standard 2-1/2" - 8 NPSM tank openings.