This is a diaphragm service replacement for the following products:

RADIUM MPR (multi-pump regulator)
RADIUM FST-R (fuel surge tank regulator)
RADIUM DMR (direct mount regulator)

NOT CARB-APPROVED. ILLEGAL TO USE OR INSTALL IN CALIFORNIA. IF YOU LIVE IN CA, WE CANNOT SHIP YOU THIS ITEM AND YOU WILL BE CHARGED A 10% CANCELLATION FEE IF YOU ORDER. PLEASE LOOK FOR OTHER PRODUCTS WITH CARB APPROVAL.