Vintage Filt-O-Reg fuel pressure regulator manufactured by Alondra Sales, Inc. of Los Angeles, California. Designed to regulate fuel pressure to approximately 3 PSI to help improve engine idle performance and reduce carburetor flooding. These units were commonly used as aftermarket automotive accessories and are often associated with classic cars, especially vehicles from the 1950s era. Pre-owned vintage condition and untested. I found this in my Dads work area
