I have them on my -10 for main and aux tank vents. I have a set of sumps but ended up using the flush sump drains; kept having leaks with the standard CAV-110s.
EAA Tech Counselor
Aerospace Engineer '88
In Paint at Evoke!
Garmin G3X-T, Barrett EFII S32, CAI, MTV-9B
Dues+ Paid 2022,...Thanks DR+