This product includes:
• 12v 3-way valve with 6mm fittings and outlet silencer
We strongly recommend to use this valve to operate the air cups.
On: the air cups automatically goes to their highest position.
Off: the air cups deflates and goes to their lowest position.
 
Direct replacement for the previous model and used for all our kits from now on.
Note: It consumes more power, so you may need to replace the switch (thicker wire).
Not required for front-only kits (1 valve, 1 switch), necessary for  front + rear kits (2 valves, 1 switch).