This valve is solid brass, making it long lasting and heavy duty.
GM 350 Proportioning Valve Kit Brake Lines Mounting Bracket Disc Drum Chrome PV2
GM Proportioning Valve Kit Brake Lines Mounting Bracket Disc Disc Chrome PV4
Wilwood Style Knob Adjustable Combination Proportioning Valve With Brake Line
GM Master Cylinder with Disc Drum Proportioning Valve Disc Brake Kit 1 1/8" Bore
GM Master Cylinder with Disc/Drum Proportioning Valve Disc Brake Kit 1" Bore
GM Master Cylinder with Disc/Disc Proportioning Valve Disc Brake Kit 1 1/8" Bore