This floor vacuum needs no power and no filter pump. You screw the garden hose onto the quick coupling, open the tap, and the water jets in the head create the suction that pulls leaves, sand and grit off the floor and into the collecting bag.
The set contains the blue vacuum head with its fine mesh bag, the universal coupling for the garden hose, and a pole you build from five tubes up to 120 cm. The tubes click together with spring buttons, so you choose the length that suits the depth of your pool.
The bag is held around the head by a drawstring and comes off afterwards so you can rinse it out with that same garden hose. It is meant for above-ground pools and spas, where a full pool robot is heavy artillery.
A cheap way to touch up the floor between cleans, and after the summer the pole comes apart again so the whole thing takes up little room.