Waterway 550-9237 Self-Aligning Return Fitting 3/4 in Eye - GrayThe Waterway 550 9237 is a self aligning return eyeball fitting from the Waterway Return Fittings line with a 3 4 inch eye, gray. It is molded from PVC and installs as an insider style insert for 1 1 2 inch PVC pipe. It fits Waterway return wall fittings and pool spa inlets that accept 1 1 2 inch insider connections.