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Allstar Performance Residual Check Valves

Allstar Performance residual check valves hold a small amount of pressure in your brake system to keep it functioning properly, while helping to sustain a firm pedal. Maintaining system pressure prevents fluid from returning to the master cylinder, when the master cylinder is positioned lower than or close to the same height as the calipers or wheel cylinders. Proper system pressure also keeps pistons and wheel cylinder seals expanded, creating a positive seal, and brake pads seated against the rotor. Valves include two 3/16 in. inverted flare fittings.

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