Product Overview

Seal for your SpaBrite lighting system with the Pentair 79108500Z Gasket. This off-white gasket is designed for a 4-inch diameter lens to provide a snug fit, preventing water leakage and maintaining the integrity of your pool or spa lights. Ideal for replacing worn-out or damaged gaskets.

The SpaBrite Gasket is easy to install and offers superior performance to keep your pool or spa lighting operating smoothly. Keep your pool safe and bright with this high-quality gasket—engineered to meet the rigorous standards of Pentair products. Perfect for homeowners and professionals looking for a dependable solution to ensure optimal lighting performance.

Ideal For

Replacing a worn, flattened, or leaking lens gasket on a 4" Pentair spa light

Re-sealing the lens whenever a spa light is opened for service

Key Features

Genuine Pentair part 79108500Z

4" lens size, off-white

Seals the lens to the light housing to keep water out

Specifications

Warranty & Compatibility

Compatibility Notes

For Pentair 4" spa lights including SpaBrite, SAL Spectrum AquaLight and IntelliBrite spa lights. Confirm your light model and lens size before ordering; this gasket does not fit full-size pool light lenses.

Installation Notes

Turn off power to the light circuit at the breaker before servicing. Remove the light from the niche, remove the lens assembly, replace the gasket, and reassemble evenly so the lens seats fully. Test for leaks before returning the light to service; light servicing is best done by a qualified technician.

Customer-Facing Q&A

Q: What is the part number?
A: Pentair 79108500Z.

Q: What lights does it fit?
A: Pentair 4" spa lights such as SpaBrite, SAL Spectrum AquaLight and IntelliBrite spa lights.

Q: Will it fit my pool light?
A: No. This gasket is for 4" spa light lenses, not full-size pool lights.

Q: Should I replace the gasket every time I open the light?
A: It is good practice to replace it if it is flattened, cracked, or stretched, since a poor seal can let water into the fixture.