Polaris® F5T 280 Pressure Side Pool Cleaner with Back-Up Valve 31' Hose, 2 Jets, 2-1/4'' Vacuum Inlet Vinyl works in all in-ground pools and requires a booster pump. It is powered by double jets, providing greater vacuum power and faster cleaning (3 hours or less). The Polaris® 280 easily connects to a dedicated pressure line and sweeps, scrubs, and vacuums all surfaces of the pool. The pressure cleaner is equipped with a single chamber filter bag where it captures large debris such as leaves, acorns, pebbles, and other small to large debris. Its unique filter bag removes debris before it reaches your pump basket or filter, prolonging the life of your filtration system.