Dura-Lite™ manufactures a Test Kit that includes all of the tools and instructions necessary to test most models, makes, and/ or sizes of Charge Air Coolers safely and accurately. Please reference Dura-Lite’s Tester-Kit™ information page under the Products section of the Website or printed Catalog for additional information on the basic procedure. Dura-Lite’s Part # is “Tester-Kit™” and the kit is available through Dura-Lite™ Distributors/ Dealers. The Distributor/ Dealer will provide your cost. Please contact Dura-Lite™ Customer Support at 800-661-1117 for information on a Distributor/ Dealer near you.