REGULATOR ADJ VACUUM with WELD BUNG

Peterson Fluid Systems Adjustable Vacuum Regulator is on the leading edge of engine management. It has been proven to regulate crankcase vacuum and hold a steady level through extensive testing. Vacuum can be regulated from as high as 29. 7 in/hg down to 2 in/hg. This regulator is machined from billet aluminum and features the same great quality as all of Peterson's products.