technically you can use a longer lead as long as the excess length is neatly coiled (avoiding sharp kinks) and secured away from direct heat or moving parts

This C x C x C (Cup x Cup x Cup) pressure tee features a 3/4" Outside Diameter (O

ensuring factory-standard fitment

or debris in the flue pipe

3-phase systems and residential gas furnaces

Resideo BP900 Backflow Preventer technically you can use aThe Resideo BP900 is an industrial grade 1 2 inch double check backflow preventer engineered specifically for high demand hydronic systems and small supply lines. This critical component utilizes an integrated intermediate vacuum breaker to provide redundant protection against both backflow and back siphonage, ensuring contaminated water never enters the potable supply. Constructed with a heavy duty bronze body and stainless steel internal components,