PoolRx - PoolRx+ Blue Mineral Unit for 7,500 to 20,000 Gallons direct replacement From left to right they

From left to right they are labeled - 1 2 and 3 (inside little clock symbols) under these lights is a "Select" button

Maytronics 9991412-R1 Filter Cartridge Conversion Kit

This granular calcium hypochlorite kills bacteria

Compatible with standard poles for convenient use

and support efficient filtration

PoolRx - PoolRx+ Blue Mineral Unit for 7,500 to 20,000 Gallons direct replacement From left to right theyThe PoolRx+ Blue Mineral Unit contains a new and improved mineral formulation that effectively works to keep algae out of your swimming pool 7,500 to 20,000 gallons. PoolRx+ is a new and improved mineral formulation Contains three EPA registered active ingredients, including Copper, Silver and Zinc PoolRx+ is even better at eliminating and preventing all algae and in reducing chlorine demand. (minimum 0. 5 1. 0ppm) PoolRx+ minerals are uniquely