- High-Quality Torque FF-2 Full Function Valve 
- Single valve system - easy to install, maintain and troubleshoot.
- Built-in pressure protection and anti-compounding functions.
- 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.
- Replaces 
Haldex: KN28600, KN28600X, KN28600RX, N4304AC
Mack: 5396KN28600
Midland: KN28600
Euclid: EMDKN28600N- Specifications:
Crack Pressure: 3.0 PSI
Reservoir Port: 3/4"
Control Port: 1/4"
Supply Port: 3/8"
Spring Brake Ports: 2 @ 3/8"
Delivery Ports(4): 3/8"