Quick view RVKN26000 - RT-4 Valve Trailer Supply (A): 3/8"Trailer Supply (B): 3/8"Trailer Control: 3/8"Reservoir (A): 1/2"Reservoir (B): 3/8"Delivery (4): 3/8"PPV Closing Pressure: 55 PSINotes: Cover as shownDescription: Meets all FMVSS-121 trailer requirements for a spring brake... Compare
Quick view RV12352 - Relay Valve Crack Pressure: 3.0 PSIReservoir: 1/2"Control: 1/4"Supply: 3/8"Spring Brake: 2 @ 3/8"Delivery (4): 3/8"OEM Part Number: N4304ABDescription: Can be used with single or twin air tanks, Valve combines a pressure protection calve, two one-way check... Compare
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