Air System Parts Bundle. Bundle Includes: 2 – Front Upper Bag Mounting Brackets. 2 – Front Lower Control Arm Bag Mounting Brackets. 2 – Weld-On Over The Axle Bag Mount 2 – Weld-On Upper Frame Bag Mount. 2 – airmaxxx 480 Chrome Air Compressors 2 – 3/8″ Stainless Steel Braided Leader Hoses 2 – 3/8″NPT Check Valves 8 – 1/2NPT 250psi Brass Fast Valves 8 – Valve Mounting Brackets. 2 – Air Lift Dominator 2500lb Air Bags. 2 – Air Lift Dominator. 2600lb Air Bags 2 – Premium 40 Amp Relays 150 psi on, 180 psi off, Tank Pressure Switch. 5 Gallon 9 Port Air Tank Black 9 Switch AVS Hand Held Controller.