This replacement chlorinator cap is designed as a compatible component for Pentair Rainbow automatic chlorine and bromine feeders, specifically fitting models 320, 300, 302, 300-19, 300-29, and 322.

Made from durable, UV-resistant plastic, the cap offers a reliable seal to prevent leakage and maintain consistent chemical dispensing. The straightforward design allows for quick installation without special tools, making it a practical maintenance part for pool and spa owners. Its transparent material enables easy visual inspection of the internal feeder status. At a very affordable price point, this cap delivers dependable functionality and a snug fit, effectively extending the life of the existing feeder system. The precise engineering ensures proper alignment and secure closure, contributing to efficient chlorine or bromine release. This component is an economical choice for those seeking a direct replacement for worn or broken original caps, helping to keep pool water balanced and clear without unnecessary expense. The robust construction withstands regular exposure to pool chemicals and sunlight, offering long-lasting performance in both residential and light commercial settings.

This cap serves as a straightforward, cost-effective solution for maintaining an automatic chemical feeder, prioritizing compatibility and ease of use. It is ideal for DIY pool maintenance enthusiasts and professionals alike who need a reliable part that performs consistently season after season.