1/2" barb inset x 1/2" CTS stub out elbow to make termination from inside to outside wall for plumbing fixture hook-up. Use with model No. P-955 SKU 447519 grommet and either angle bracket model No. P-953 SKU 447500 or straight bracket model No. P-951 SKU 447494. Secure PEX end with either stainless steel CinchClamp and Cinch Tool or copper crimp rings and crimp tool (not included).