Anvil 0312822745 Metal Pipe Union Straight, 1 1 2 in x 1 1 2 in, Female NPT x Female NPT, Class 300, 1500 psi @ 150° F, Malleable Iron, Black 3KY55 ASSE 1037 Green Environmental Attribute ASSE 1037 Green Environmental Attribute Product Contributes To Reducing Water Consumption Green Certification or Other Recognition WaterSense Certified Range 67 Degrees to 275 Degrees F Tubing Wall Type Thin Wall Adhesive Lined No Material Cross Linked Polyolefin Kit Contents Multiple Sizes Dielectric Strength 600 V Package Style Sticks Shrink Temperature 120°C Temperature Range 55°C 135°C Style CPO Series Non Lined Kit Thickness Thin Type Thin Wall Heat Shrinkable Tubing UL Listed Manufacturer Location Made in USA Country of Origin United States such as PTFE tape