BLACKMAGICON24S
+1y
I AM LOOKING FOR 4- 1/2" CHECK VALVE FITTINGS, I MAY HAVE THE NAME WRONG.
ITS THE FITTING THAT DOES NOT ALOW AIR TO GO BACK, IT ONLY ALOWS AIR TO BLOW THROUGH IT.
I WOULD LIKE TO INSTALL THESE FITTINGS IN FRONT OF EACH "UP" VALVE SO THAT IF MY TANKS EVER LOOSE PRESSURE I CAN STILL DRIVE WITH NO AIR IN THE SYSTEM.
ANY HELP IS APRECIATED.