Pentair PNSD0060OE1160 1HP ABG Optiflo System, SD60 Pools Up To 35ft. Rd <28k G, Req.250# SandProduct Description The Pentair Sand Dollar Sand Filter with 1 HP Dynamo Above Ground Pool Pump is a highly effective combination of equipment. With its rugged construction, highly efficient design, and hydraulically matched components, the Sand Dollar Filter Systems provide all the clean, crystal clear water your pool requires. This system provides excellent performance at an affordable price. Note: The requires 150 lbs of #20 silica sand (sold