SuperPro G-403-9 Gasket for AquaLuminator

The SuperPro G-403-9 is the replacement gasket for the AquaLuminator pool light. The source listing also names it for Quasar and Luminator 2000 lights.

What it does

The gasket is the seal between the lens assembly and the light housing. Everything else about the fixture is a bulb and some wiring in a dry cavity, and this one flat ring is what keeps the pool on the outside of it.

When to change it

Any time the light comes apart. Rubber that has spent several seasons compressed between two surfaces takes a permanent set, and reusing it means clamping down harder on a part that has already given up. Fit a new gasket while you are in there and the light goes back together properly the first time.