Pool Season pH Down - 2.5 Lb. Jar filter-internal-diameter_1 inches The Tri-Lock strainer cover design

The Tri-Lock strainer cover design seals with less than a quarter turn

and is 115 volts with a 400-4000 GPM

This is a 5/8 S/F mechanical seal

making it perfect for players of all ages and skill levels

The check valve protects the pump and heater from back-up of highly chlorinated water

Pool Season pH Down - 2.5 Lb. Jar filter-internal-diameter_1 inches The Tri-Lock strainer cover designThis is a 2. 5 lb. jar of Pool Season pH Down. pH Down is a granular dry acid product that decreases the pH of pool water slowly and effectively. This granular product is more convenient than liquid acid. Pool Season pH Down is the product of choice by pool professionals across the country.