Swimline Supreme Guard Solid In Ground Winter Pool Cover - 30' x 50' Rectangle sppo_closing_sync The PhosFree removes phosphate levels

The PhosFree removes phosphate levels up to 300 ppb to near zero while the Metal Free phosphate-free chelating agent quickly deactivates stain -causing metals and prevents scaling

Complete pool care now comes in a convenient package for above ground

Simply add one bottle of Pool Stain Treat per 20

Manufacturer Part # SPX3200Z211

There are 8 total round roller bearings which fit between the end pieces and each cross piece is separated by 2 round roller bearings

Swimline Supreme Guard Solid In Ground Winter Pool Cover - 30' x 50' Rectangle sppo_closing_sync The PhosFree removes phosphate levelsSwimline's Supreme Guard winter pool cover helps keeps your water free from dirt, leaves, and debris. It helps prevents algae growth, so you can skip the costly maintenance and avoid time consuming spring cleanups. 10 x 10 Scrim 5 foot overlap Pool Type In Ground Pool Size 30' x 50' Rectangle Cover Size 35' x 55' Rectangle Manufacturer Swimline Warranty 10 Year Manufacturer Pro Rated Warranty 1 Year Full Cover Color Green