You can get these though summit or jegs or any pneumatic control place like abco for air conditioning supplies or good hardware place like graingers or mcmasters.
Oops...forgot to update. I used the schrader vavles off a car tire. I just stripped away the rubber and it's kinda like a barbed fitting under there. I just slid them into the hose and re clamped it and wallah. Works like a charm. Thanks guys!