Firestone Xtra Heavy Duty Dual Air Command w/ Compressor And 1/2 Gallon Tank. Kits include a compressor an air tank and a 25ft extension hose. Included air tank in extra duty kit comes with a size of 1/2 gallon. Features of Firestone Xtra Heavy Duty Dual Air Command With Compressor And 1/2 Gallon Tank Includes compressor (Part # 9499) Includes 1/2 gallon air tank (Part # 9124) Includes 25' hose (Part # 9006) Extra-duty Kit Package Contents: Firestone Xtra Heavy Duty Dual Air Command With Compressor And 1/2 Gallon Tank Firestone 2047: Xtra Heavy Duty Dual Air Command w/ Compressor And 1/2 Gallon Tank