DonJoy RecoveryAir Pro compression system in gray. Provides targeted leg and foot compression for recovery and circulation support. Lightweight components and simple setup let you use therapy at home. Gray therapy pads and straps deliver a neutral, professional appearance. I just ran with water and checked for leaks. NO LEAKS. used about 3 yrs ago for knee. PLEASE see pics. there is minor damage to foam on hose but not effecting water hose. works perfectly.