• Our Kit is designed for use with Freightliner, International, Kenworth, Peterbilt, Volvo, GMC and Sterling cooling systems • Use shop air to maintain constant pressure to the cooling system during testing and refill • Helps eliminate the complications often experienced with unreliable rubber plugs or bladders, saving setup time and providing more accurate test results • Quick Disconnect vacuum attachment allows rapid refilling of the cooling system • Includes Heavy Duty Vehicle adapters, pressure test regulator, vacuum refill attachment with tubing, all in a durable storage case • Made in USA
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