PentairQuad 100 Filter Cartridge - 25 Square Feet gallons-per-day_50-74 This is a Schedule 80

This is a Schedule 80 One-Piece Flange with a 2-1/2 inch threaded female connection

This is a Drop Test Bromine FAS-DPD 2 ounce Test Kit (1 drop equals 0

They are easy to install as they are provided with their own setting template which ensures accurate installations

It is used for Quaternary Ammonium Compound (QAC) and Polyquat testing in Taylor Kits

PentairQuad 100 Filter Cartridge - 25 Square Feet gallons-per-day_50-74 This is a Schedule 80The Pentair 178656 Cartridge Filter Element for Quad DE and EasyClean EC90 Filters has a media area of 25 Square Feet and is made of superior reinforced polyester pleated material with polyurethane end caps. Pentair reusable cartridge filter elements provide a high degree of water clarity and longer filter cycles. To maintain your pool water cleanliness and clarity, Pentair genuine replacement cartridge elements are the number one choice in cartridge