Internal Regulator is preset at 59.5 psi #12-888 has 3/8" NPT ports. #12-889 has -8AN o-ring ports.

Add billet mounting clamps, 12-574 and 12-574S

Designed to help minimize the fuel line plumbing needed when installing an electronic fuel injection conversion
More compact design than the common Corvette fuel filter regulator combo
Convenient AN ports for easy plumbing
Preset to 59.5 psi

Attributes
Adjustable	No
Brand	Holley EFI, Holley EFI
California Proposition 65	No
Category	Air and Fuel Delivery
Country of Origin (Primary)	US
Emission Code	3, 5
Free Flow GPH	175
Fuel System	EFI, EFI
Fuel System Type	EFI
Fuel Type	Gasoline, Gasoline
GPH	175, 110
GTIN	00090127006252
Gauge Port	No
Grade Type	Performance
Harmonized Tariff Code (Schedule B)	8409915085
Hazardous Material Code	N
Inlet Port Diameter	-8AN, -8AN
Inlet Quantity	One, One
Inlet Size	8 AN O-Ring, 8 AN O-Ring
Inlet Type	ORB
Life Cycle Status Code	Available to Order
Material	Aluminum
Micron	10, 10
Micron Rating	10
Mounting Hardware Included	No
NAFTA Preference Criterion Code	B
Outlet Port Diameter	-8AN, -8AN
Outlet Quantity	Two, Two
Outlet Size	8 AN O-Ring, 8 AN O-Ring
Outlet Type	ORB
Port Quantity	3
Pressure	59.5 PSI
Product Type	Regulator, Fuel Pressure Regulator
SDR Required Flag	N
Sale Category	Air and Fuel Delivery
Style	Bypass, Bypass
Sub Category	Fuel Injection System and Related Components
Thread	8AN, 8AN
Thread Size	8AN
Warning	California Proposition 65, California Proposition 65
Warranty	Limited 90 Day, Manufacturer's Limited 90 Day Warranty
part type	Fuel Injection Pressure Regulator