Union Application Non-Potable Water Fitting Side A Connection Type Compression Fitting Side B Connection Type Compression Finish/Coating Zinc Plated Fitting Material Brass Fitting Side A Tube Outer Diameter 1/8 in Fitting Side B Tube Outer Diameter 1/8 in Maximum Operating Pressure 3 600 psi Maximum Operating Temperature 400 Degrees F Overall Length 1 3/8 in Specific Fitting Shape Straight Connector Compatible Fitting Brands A-LOK Thread Size A 5/16-20 Thread Size B 5/16-20