Main Access Pool Step Mat for Lining Protection, 36" x 36" | 310036 DE Filter Media The slower circulation rates of

The slower circulation rates of a variable speed pump equate to a noticeably quieter motor

Note from Unicel: The 4CH-50 replaces cartridges that use a 1-1/2" MPT bottom fitting and match the dimensional envelope above (14 3/4" length × 4 5/8" OD)

and can stay attached to the pump when you store it away

Increases filter efficiency

Main Access Pool Step Mat for Lining Protection, 36" x 36" | 310036 DE Filter Media The slower circulation rates ofAdded Protection for Your Pool Liner Adds extra friction protection for the contact points of your pool steps to help prevent any issues with your pool liner. Measures 36 x 36 Protects your liner from abrasion Cross hatch pattern improves traction Dark color hides dirt and debris