Intex Pool Plunger Valve w/ Large Pool Fitting & Directional Cover For use with Intex above ground pools using 1-1/2" diameter hoses Designed for Intex Brand 18' or larger Above Ground Pool Set Threaded collar that attaches to pool strainer assembly at pool wall Compatible with Above Ground Swimming Pool liner w/ 2-5/8" diameter thru holes One Pool Fitting w/ Directional Cover Included