01-04-2023, 09:46 PM
Brad. To answer your first q , I would guess there was an air drier / moisture collector plumbed in there. It probably broke and was replaced with that union.
1993 Newell (316) 45' 8V92,towing an Imperial open trailer or RnR custom built enclosed trailer. FMCA#232958 '67 Airstream Overlander 27' '67GTO,'76TransAm,'52Chevy panel, 2000 Corvette "Lingenfelter"modified, '23 Grand Cherokee.