Pool Vacuum Cover is a safety mechanism designed with a spring action cover. When the pool cleaner is not working, the vacuum cleaner lock safety wall attachment helps keep it sealed. It helps hold the hose in place when the pool cleaner is working. Construction: Crafted from high-quality materials, the Vac Lock W400 Parts robust construction ensures and dependable performance, providing you with peace of mind for years to come. This Pool Suction Cover is designed to use with Pen-tair Kreepy Kadet, Kreepy Krauly Kruiser, Kreepy Krauly , PoolShark, Pool Vac, Navigator and most other automatic pool cleaners. Replacement for parts number W400BWHP, W400BBKP, W400BLGP, And Replacement for Pen-tair parts number GW9530, K12500 Easy Installation: Installing the pool suction cover is a straightforward process, compatible with most pool systems. It seamlessly integrates into your existing vacuum line, ensuring a secure and leak-free connection. Color: White Material: plastic Package Contents: 3X Pool Vacuum Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.