How:Pool Plugs: Universal Mesh Filter for Above Ground Pumps Pool FilterAbove Ground Pool Plugs: this filter replacement for hose. For pools without a plunger valve, you can replace the filter on the pump. Fits pool parts: parts up to 530/1000 gph or smaller pump models. Pool Skimmer plugs made of durable plasticThese ae plugs used in swimming pools that occupy 1.25" diameter hoses that do not have a piston valve to stop water when changing the filter. It is used to filter the pump and keep the water in while cleaning the filter pump. -Please confirm the item size before you buy Feature:Plastic Size: 2.9*3.93*6cm/1.14*2.55*2.36inchPackage Content:1 Pool PlugNotes:1. Due to various factors such as monitor brightness, light brightness, etc., the actual color of the product may be slightly different from the picture displayed on the website.2. Please allow slight manual measurement deviations in the data. Thank you for your support! Welcome to buy from us! There are so many useful and cheap items in our store. We will be ready to reply you as soon as possible.