<b> NEW IMPROVED DESIGN. NOTE: 2" MNPT has outside dimension (OD) of 2.3 inches</b></br></br>NOTE: This 2" adapter will fit the 1.5" Intex Pool Hose. The ideal male nipple fitting adapter with the octagon shape centerpiece that can be use with a pipe wrench to tighten. Can be used with 2" pvc union to connect to pool/marine/rv pumps, multiport valves, sump pumps, Intex hose tubings</br>Available in 1.5" and 2" MNPT