Polaris® Vac-Sweep F3 380 Pressure Side Pool Cleaner with Back-Up Valve 31' Hose 3 Jets, 2-1/4'' Vacuum Inlet is powered by triple jets and a separate booster pump. The Polaris® Vac-Sweep 380 pressure cleaner works in all in-ground pools, and requires a booster pump. It features an all-wheel, belt drive mechanism that provides greater vacuum power and faster cleaning. Powered by triple jets, the Polaris® 380 sweeps, scrubs and vacuums the bottom, walls and steps of the pool and holds debris in its single chamber filter bag. Its unique filter bag removes debris before it reaches your pump basket or filter, prolonging the life of your filtration system.