Pool plugs: universal filter for Intex above ground pool filterPool Plugs for Above Ground Pools: This replacement hose plug for Intex, for Cole-man, for Esc-ape summer pools that don't have plunger valves so you can replace filters in pumps.Compatible with in-dex pool parts: part for pump models 530/1000 GPH or less. Durable plastic pool skimmer capHigh Quality Pool Plugs: These plugs are used for pools that take 1.25" diameter hoses that do not have plunger valves to shut off water during filter changes. It is used to replace the pump filter, and retain water while cleaning the pump filter. - Please confirm the item size before purchasingSize: suitable for above ground pools 4.8m and below - Base: 5.8cm - Inner diameter of the plunge part: 2.9cm - Outer diameter of the plunger: 2.3cm - Height / depth: 3.9 cm