Pentair Niche Screw Repair Kit 1" (79205300Z) couplings and this Darlly cartridge is

and this Darlly cartridge is designed for compatible applications using the C-8416 reference

UV bulbs are core maintenance items in ultraviolet sanitation equipment because lamp output declines over time even when the unit still powers on

That helps restore one-way flow with a direct replacement that remains more accessible for future work

The set-of-two format gives this part practical value because matched movement hardware helps keep reel support more balanced and more consistent

Pentair Niche Screw Repair Kit 1" (79205300Z) couplings and this Darlly cartridge isSmall hardware can make the difference between a secure pool light installation and a fixture that is difficult to service later. This niche screw repair kit is intended for repairs around 1 inch pool light niche fasteners where worn, stripped, or missing screw hardware needs to be corrected without replacing the entire lighting assembly. Designed for pool and spa light niche service work Useful when restoring secure face ring or niche attachment