Pentair Quad DE 60 Filter Cartridge - 15 Square Feet size-in-gallons_51-100 This is a Tank O-Ring

This is a Tank O-Ring for Pentair Sta-Rite System:3 Modular SD Series D

It is used to clean spas

and a 360 degree continuous rotation

Tank systems are shipped pre-assembled for quick installation with the Classic 45 Series Adjustable Pump

This is a replacement Pentair Bronze Replacement Drain Plug for C-Series Commercial Pool and Spa Pumps

Pentair Quad DE 60 Filter Cartridge - 15 Square Feet size-in-gallons_51-100 This is a Tank O-RingThe Pentair 178654 Cartridge Filter Element for Quad DE 60 Filters has a media area of 15 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 filtration.