Pentair Automatic Feeder O-Ring Cap R172009 1 qt bottle and temperature cycling for long

and temperature cycling for long service life

see an increase in your sanitizer efficiency and reduce filter maintenance

and yellow algae for comprehensive pool algae control

as well as the graduated cylinder with built-in chart

so your water stays clean longer between cleanings

Pentair Automatic Feeder O-Ring Cap R172009 1 qt bottle and temperature cycling for longPentair Automatic Feeder O Ring Cap R172009 Intro Keep your Pentair Rainbow automatic feeder performing at its best with the O Ring Cap R172009. This purpose built replacement cap preserves a tight seal, prevents leaks, and guards against dosing drift in day to day pool operation. Compatible with multiple Rainbow models300, 302, 300 19, 300 29, 300 29X, 320, and 322and their extensions, it delivers dependable, low maintenance chemistry management for