Aquastat Aquastat Material Aluminum Steel Compatible Pipe Material Copper Compatible Pipe Size 1/2 in 3/4 in Compatible with Brand Bell and Gossett Compatible with Grainger Part Number 13L284 13L285 13L286 13L287 30K927 33HM88 3GZV2 3GZV3 3GZV4 3GZV5 3GZV6 3GZV7 3GZV8 3GZV9 3GZW1 3GZW2 3GZW3 3GZW5 4JB21 4JB22 4JB24 4JB26 4PC77 4PC78 4PC80 4PC82 4PC84 4PC85 4PC90 4PC92 4PC94 4YVF4 4YVF5 4YVF6 4YVF8