You are Buying a 1" Ball Gasket that fits inside of a Waterway air control valve over top of the ball.. NOTE: This listing is for the Gasket only all other items shown
This Waterfall or NeckJet Control Stem is Used in Waterway Top Access 100% shut-off valves 1".
This valve might have the poart# 602-0980 on the stem.
Plumbing Connection Size Slip (s)