Weldon Pump's new 2047 bypass regulator features a -12 return line with two -12 pressure ports. The .438" bypass orifice is capable of flowing well over 10 gpm. The 2047 is the highest flow fuel pressure regulator in the industry and the first to have a teflon diaphragm, making it compatible with all known racing fuels. Additional features include a pressed-in, hard coated, anodized, replaceable sear, gauge and boost reference ports, the same mounting pattern as our popular 2040 regulator, fully adjustable pressure settings and full length O-ring ports. The 2047 will perform well with any and all fuel systems and can be used with engine driven or electic pumps.