Watts RK 919 RT 3 4 Complete Rubber Parts Kit for 919 Backflow Preventer G106284097 Reducer Schedule 80 Threading Threaded Reducer Schedule 80 Threading Threaded on Both Ends Connection Type Pipe Connection Style Threaded Gender Male Pipe Size (A) 2 Pipe Size (B) 3 4 Length 6 1 2" OD (A) 2 3 8" OD (B) 1 3 64" Wall Thickness (A) 0 Left Hand For Pipe Size 1 1 2 Use with Drill Bit Size 1 9 16" Overall Length 4" Flute Type Straight Turns With Wrench Material Steel For Extracting Pipe Sold As Individual Country of Origin United States DFARS Compliance Specialty Metals COTS Exempt Export Control Classification Number (ECCN) EAR99 REACH Compliance Not Compliant RoHS Compliance RoHS 3 (2015 863 EU) Compliant Schedule B Number 820790 Relief Valve Stem O Ring Relief Valve Cover O Ring