Direct replacement PMA'd suction guage

[Andrew Fay]

Hey everybody,

My next question is about the legality of a new-style suction guage. I bought a UMA 1" suction guage but the installation notes only mention a PMA for maule. Is there some approved data out there for a 1" suction guage? I know I've seen some installed so I'm curious how you guys went about it. My airplane has a Cessna suction guage in it now so it's already subject to question.

Thanks,

Andy