Sta-Rite Cristal-Flo™ II Above Ground Sand Filter System – The low cost, easy-to-maintain filter systemCristal-Flo II above ground sand filter system. Everything is assembled on an attractive, robust platform. Nothing could be easier to operate or maintain. A simple twist of the wrist puts the Cristal-Flo II filter system in backwash mode for quiet, efficient cleaning action.Features: One-piece polyethylene tank will never corrode Easy-to-read top-mounted pressure gauge Multi-port valve selector activates backwashing action with one quick turn Combination water and sand drain makes servicing and winterizing fast and easy Innovative, integrated, continuous High Flow Internal Air Relief 1 hp, Single speed pump 3’ Standard cord w/ 6’ hose kit Specifications: Pumps and replacement motors that are single speed and one (1) Total HP or greater cannot be sold, offered for sale, or installed in a residential pool for filtration use in California, Title 20 CCR sections 1601-1609.