TB Woods 4J-7/8 Flange range for 325-3 units and

range for 325-3 units and 2-5 PSI for 220 series regulators

If your furnace uses a 41-409 hot surface ignitor

Should I use thread sealant on the flare end

Silent Operation: Designed for quiet mechanical switching

Red-coded for easy identification and technical compliance during service calls

TB Woods 4J-7/8 Flange range for 325-3 units andThe TB Woods 4J 7 8 Sure Flex Plus Flange is a high performance sintered carbon steel coupling component engineered specifically for close coupled power transmission applications. This Type J coupling flange features a 7 8" finished bore and a standard 3 16" x 3 32" keyseat, ensuring a precise slip fit on motor and pump shafts. Built using advanced powdered metal technology, the 4J78 flange provides exceptional dimensional accuracy and uniform