spa filters dimensions:107mm(diameter)x28mm(inner diameter )x95mm(height) The high-quality hot tub filter element can filter out excess dust and dirt, optimize the performance of the pump and extend the service life of the equipment pool filter function is to filter the water in the pool so that the leaves, insects and dirt deposited on the surface of the pool water are not deposited on the bottom of the pool For Best Results, Clean filters Often and Replace Every Few Weeks During Heavy Usage Note: Please confirm whether the size is suitable for your equipment before purchasing, so as to avoid unnecessary troubles to you, Type VII and type D filter cartridge, outer diameter: 10.7 cm, inner diameter: 5.2 cm, height: 9.5 cm. Pool filter cartridgecompatible with bestway VII and for intex type D swimming pools and hot tub. swimming pool filters for hot tub can effectively solve the problem of water purification and filtration for you, keep the water clean, and avoid water pollution and the spread of diseases. Hot tub filters powerful propulsion of swimming pool filters can effectively remove hair, leaves, dust, sediments, sand, etc. Specification: Material: Polyurethane and non-woven fabric Size: 107mm*52mm*95mm Packing list: 2 pack