Pentair Posi-Flo II PTM135 Filter Cartridge - 135 Square Feet pipe-size_1" The lettering is 4 inch

The lettering is 4 inch and

The Parallel Grate system is available in either straight or radius that follows the contours of any rim-flow pool design

It is open at the bottom and fills with water and submerges to simulate an unconscious victim

stating Danger Keep Off are provided on two sides of the tank in vivid orange

Pentair Posi-Flo II PTM135 Filter Cartridge - 135 Square Feet pipe-size_1" The lettering is 4 inchThe Pentair Sta Rite 177010 Cartridge Filter for Posi Flo II PTM135 Filters has a media area of 135 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