General description Includes 3 wall locks and a wrench, numbered W400BWHP. These vacuum safety locks are great pool accessories designed to connect the suction cleaner hose to the swimming pool wall, enhancing the cleaning efficiency. Technical specifications Material: Hard plastic, resistant to corrosion Package Contents: 3 pieces of pool hose vacuum locks Measurement allowed error: +/- 1-3 cm Installation Simply screw the lock tightly to the wall Use tape to increase friction if necessary Usage Prevents the pool cleaner hose from being pushed open when the pump stops due to return pressure Ensures reliable connection for effective pool cleaning Other information Color: Photo Color Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product