Port Connector, Application Gases, Liquids, Fitting Side A Connection Type Compression, Fitting Side B Connection Type Compression, Fitting Material Stainless Steel, Fitting Side A Tube Outer Diameter 1/2 in, Fitting Side B Tube Outer Diameter 1/2 in, Material Grade 316, Maximum Operating Temperature 1,200 Degrees F, Overall Length 1 19/32 in, Specific Fitting Shape Straight Port Connector, Compatible Fitting Brands A-LOK, Thread Size A 3/4-20, Thread Size B 3/4-20 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)