Swimline Super Deluxe 15' Round Above Ground Winter Pool Cover, 4' Overlap, Silver/Black | PCO1419 Sanitizer Cartridges & Cells The original Harmsco SC/TC-155 cartridge

The original Harmsco SC/TC-155 cartridge measures 7-3/4" outer diameter

Note: If water hardness level in existing pool water is above 400ppm (parts per million)

For heavy phosphate loads

Open drip proof

The Century Pool and Spa Pump Motor B2843 is a single phase motor with a permanent split capacitor for enhanced running efficiency

Swimline Super Deluxe 15' Round Above Ground Winter Pool Cover, 4' Overlap, Silver/Black | PCO1419 Sanitizer Cartridges & Cells The original Harmsco SC/TC-155 cartridgeThe Polarshield Pro Strength Pool Cover series is made of extra strong polyethylene sheeting woven with thick polyethylene stitching, which provides superior strength and durability. The winter cover is treated to provide maximum resistance to damaging ultraviolet rays to inhibit deterioration and increase longevity. Adding a Pro Strength winter pool cover will protect your pool from the harsher elements of winter and keeps debris, algae and bacteria