Swimline RipStopper 21' x 43' Oval Above Ground Winter Pool Cover, 4' Overlap, Green/Black | RIG2143 Spine Boards The 4CH-949 fits select Master

The 4CH-949 fits select Master Spas Eco-Pur filtration systems designed for a 5" OD cartridge (actual OD: 4 15/16")

structural molded leaf rake

you will also need the companion partial grid: Unicel PG-1904 Partial DE Filter Grid

Anchor cap included for flush look

Swimline RipStopper 21' x 43' Oval Above Ground Winter Pool Cover, 4' Overlap, Green/Black | RIG2143 Spine Boards The 4CH-949 fits select MasterSwimline Ripstopper Winter Cover is the ultimate winter cover. It is durable, dependable and built to last. If your cover gets a hole or a puncture, no need to worry, this cover will not rip or tear. Constructed of woven polyethylene fabric, the pool cover is time tested and is sure to last a few years. This tightly woven solid cover material is made from a super strong polyethylene with an 12 x 12 filament scrim to resist the harsh winter weather.