Features: Material: PVC. Color: Black, Blue. Pool Wall Plug Size: Inner Diameter: 2.9cm. Outer Diameter: 6cm. Height: 4cm. Features: 1. This product for above ground pool filter pump for Intex and Bestway pool pump. 2. Replacement parts for 530/1000 gph or less pump. These plugs are used for pools that take 3.2cm diameter hoses that do not have piston valves to shut off the water when changing the filter. 3. It is mainly used to replace filters in pumps, effectively retain water while cleaning the pump filter. Package: 10pcs Swimming Pool Pump Filter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia