Pentair System:3 S7M120 Small Inner Sediment Filter Cartridge - 100 Square Feet filter-internal-diameter_null inches Because the hose is under

Because the hose is under constant water pressure

and is made of PVC

This is a PVC Coupling with slip fitting connections that measure 5 Inch

This commercial grade pool ladder has 2 stainless steel steps for swimmers to get in and out of your pool

It is recommended that pool water be maintained at 1

Pentair System:3 S7M120 Small Inner Sediment Filter Cartridge - 100 Square Feet filter-internal-diameter_null inches Because the hose is underThe Pentair 25021 0200S Cartridge Filter Element for System 3 S7M120 Filters has a media area of 100 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