Adapter with Washer, Nominal Size A: 3/8 inch, Nominal Size B: 3/8 inch, Flare x Compression Connection, 0.032 inch Wall Thickness, No-Lead Brass (Body), Nylon (Washer), Rough Finish, Pressure Rating: 200 psi, Temperature Range: -65 to 250 Deg F, Standards: CSA Certified, Class 6853-01, Fine Thread, Dimensions: A:0.81 inch, 0.625 B, For Use With: Used To Convert The Flare Outlet Of A Water Stop To A Compression Connection, For Instrumentation, Hydraulic, And Pneumatic Systems, Applicable Material: Aluminum, Copper, and Plastic Tubing