This patented conversion kit from Brewer's Edge will add a leak-free nickel-plated brass ball valve to any pot in which you drill a 7/8" hole with a metal-rated holesaw or step drill (hole saw not included). It features 1/2" female NPT threads on the outlet, and 3/8" NPT female threads on the inside to attach the Brewer's Edge KettleScreen model R49.
Features a holding groove on the outside of the valve for the silicone washer, preventing it from spreading when the inner pot nut is tightened. See below for the optional KettleScreen to fit this valve. US patent No. 8,191,569.
Click here for a pdf of KettleValve installation instructions.