These valves are easily installed on any cocker ram with 10/32 barb fittings. The valve mounts directly onto the ram. The Quick Exhaust Valve vents backpressure directly out of the ram body, as opposed to traveling back through the 3-way or electronic 5-way.
 

With the QEVs installed on your marker you will gain a much quicker rate of fire. On electric cockers you can increase your rate of fire 4-6 bps. On mechanical cockers you can increase your rate of fire 2-3 bps, and make your marker nearly impossible to short stroke.
 

(Each package comes with 2 QEVs)