Compatible with Bestway, Flowclear, Intex and Coleman pools The replacement hose adaptor is meant to be inserted between the hose and the pool inlet/outlet valve if the sizes don't match up. The hose adaptor is a replacement for Bestway and Flowclear sand and cartridge filter pumps. This adaptor is also a replacement for the Steel Pro MAX, Power Steel, Hydrium and Coleman pool sets that include a sand or cartridge filter pump. The replacement hose adaptor is meant to be inserted between the hose and the pool inlet/outlet valve if the sizes don't match up. Compatible with Bestway, Intex and Coleman pools