Pool Inlet Air Adapter works with Intex pool pumps 1000 GPH and smaller. 1 1/4in Pool Inlet Air Adapter is designed for use with filter pumps with 1,000 GPH max. system flow rate. Item #12368. Compatible with: 26165EH, 26167EH, 26183MW, 26191CA, 26191EH, 26309EH, 26343EH, 26719MW, 26719W, 26733EH, 26735EH, 26763EH, 26777CA, 26777EH, 26777W, 28233CA, 28241EH, 28637EG, 28637MW, 28963EH