What are the physical dimensions for manifold fitment

the thread-in style and output range make it compatible with most major brands requiring an 11/32-32 connection

maintaining the precise air-to-fuel ratio necessary for optimal thermal efficiency

and single-gang boxes

Always verify compatibility with your specific furnace model number before installation

TB Woods 4JN Insert What are the physical dimensionsThe TB Woods 4JN Insert is a high performance Sure Flex Plus Neoprene solid sleeve designed for critical power transmission in size 4 coupling assemblies. Engineered with a one piece solid construction, this 4JN neoprene sleeve provides a balance of high torque capacity and exceptional flame and oil resistance. Built for versatility, it is 100% compatible with existing Sure Flex Plus flanges, allowing for straightforward retrofitting in industrial