Carpet Cleaning 1/4" Fip Brass Male Nipple Stop Plug TO Pressure Washing QD 3/8" Fip X 3/8" Female Socket Stainless Steel Used to push water out of carpet cleaning machines into a pressure washing style heaters and tools that has a 3/8" M QD on the inbound hose. Part includes one each of the parts below. Pressure Washer QD 3/8" Fip X 3/8" Female Socket Coupler Stainless Steel 8.707-125.0 1/4" Mip X 3/8" Mip Hex Reducing Nipple Brass 8.705-227.0 - BR132 Foster QD 1/4in Male Quick Disconnect B101 NA0801 PX5