Hayward SPX1091Z4 Hose Male Smooth Adapter Replacement for Hayward Automatic Skimmers and Filters Hose male smooth adapter replacement Fits hayward pro series sand filter models s144t, s164t Also fits hayward dyna-skim automatic skimmer model sp1091lx Measures 1-1/2-Inch Mip by 1-1/2-Inch hose Weighs 5.1 pounds