• Single valve system - easy to install, maintain and troubleshoot.
• Built-in pressure protection and anti-compounding functions: FMVSS-121 compliant, eliminates broken foundation components caused by compounding of spring brake.
• Space age engineering grade composites: resists corrosion, lighter and more durable than aluminum.
• Built-in service and spring brake quick release.
• Heavy wall mounting nipple is treated to resist corrosion and withstand severe duty applications.
• Service brake priority ensures air tank pressure is sufficient to stop vehicle when spring brakes are first released.
• Can be used with single or twin air tanks.

TECHNICAL SPECS
Crack Pressure 3.0 PSI
Reservoir 3/4"
Control 1/4"
Supply 3/8"
Spring Brake 2 @ 3/8"
Delivery (4) 3/8"
OEM Part Number N4304AC