Aqua Chek 511242A Free Chlorine Test Strips - Yellow Vinyl and Fiberglass pool Skimmers

Vinyl and Fiberglass pool Skimmers

SD 80 and also compatible with Pentair Meteor

Features: Fits Pentair Sta-Rite Posi-Flo II pool & spa cartridge filter models PTM50

Waterway 411-3700 90 Deg Elbow 0

SP322063EEV

Aqua Chek 511242A Free Chlorine Test Strips - Yellow Vinyl and Fiberglass pool SkimmersThese AquaChek Yellow test strips from Hach will test your pool and spa water for free chlorine, pH, total alkalinity and cyanuric acid. Just dip a strip into the water for one second, and remove immediately. You'll have your test results in 15 seconds. To keep your pool at its best, test at each end of the pool at least twice a week, and test your spa before each use. Bottle contains 50 test strips. Instructions included in 15 languages.