MTM Hydro's Stainless M22 Twist Seal Plug X QC Fittings bring the best of the European market and the demands of the U.S market into a single joint. These newly launched fittings boast the premium look and feel of stainless with the practical anticorrosion properties of AISI 304. This 15mm size is commonly found on Sunjoe, Ryobi, and Greenworks residential pressure washer hoses.