Can Any one help me find a lock for my sewer compartment and a key for these?

Barth used several different locks over the years. Not sure what type of coach or lock you have...

My 86 Regal had T shaped pop out latches, Chicago Lock #4260.

see here:
https://www.barthmobile.com/eve...873995477#5873995477

Others have round locks made by Southco.

see here: https://www.barthmobile.com/eve...201059223#4201059223

good luck with your locks!

Here is some more information about Southco locks.

Thank you this I see what I need here.
Dale