Pentair System:3 S7M400 Large Outer Sediment Filter Cartridge - 264 Square Feet pool-dimensions_18x50 The large size dimension design

The large size dimension design easily connects with the Jandy 3 HP Stealth pumps

You would balance alkalinity

Please Note: Date of manufacture is not the controlling factor when it comes to shelf life

The platform deck height is adjustable from 12 to 18 inches high

Pentair System:3 S7M400 Large Outer Sediment Filter Cartridge - 264 Square Feet pool-dimensions_18x50 The large size dimension designThe Pentair 25022 0224S Cartridge Filter Element for System 3 S7M400 Filters has a media area of 264 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