>> Designed for extreme durability and performance, the ALPHA HD PRO STM Series comes with Stainless Steel Hardware, Jounce Bumpers/Bump Stops (a flexible polyurethane bumper inside the bag that prevents bottoming out, which could damage your air springs), and allows you to run your bags at 0 psi when unloaded for factory ride comfort.

>> Perfect for those that want the peace of mind of having an internal bumper and covet the ride comfort of being able to run without air when not towing.

>> For those that desire maximum bag travel, a great benefit when off-roading, towing and launching boats, or for those that constantly need to lower their rear to pick up trailers, consider our HP10398 ALPHA HD air bag.

>> 5,000 lbs of load leveling capacity*

* Never exceed manufacturer's recommended Gross Vehicle Weight Rating.

EACH KIT INCLUDES:

• 6ft Braided Stainless Steel Air Lines
• Stainless Steel Air Spring Fittings 
• Stainless Steel Air Spring Mounting Hardware
• Stainless Steel Schrader Valves
• Stainless Steel Roll Plates
• Two Air Springs
• Everything required for install

 CALIFORNIA WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov