Robinair's No. 75134 Econo-Clean Coolant Test Strips allow you to test your vehicle's coolant to ensure it will provide adequate protection. Degraded coolant could leave your vehicle vulnerable to freezing damage during cold weather or overheating in hot weather. Suitable for testing Propylene Glycol and Ethylene Glycol automotive coolants. Ideal for testing coolant in a wide variety of vehicles: Cars, Trucks, SUVs, Vans, Motorcycles, ATV's, Snowmobiles, and more. Just dip a strip in coolant and it shows the freeze point and the pH - bottle label includes color coded keys to interpret the test strip results. Bottle contains 50 test strips. Robinair, a Bosch Automotive Service Solutions brand, is a global leader in service tools and equipment based in Owatonna, Minnesota. Robinair is recognized throughout the world as the quality and performance leader in AC/R evacuation tools and this position has led to its success with the full range of products that serve the heating/ventilating/air conditioning/refrigeration (HVAC-R) and mobile markets, which includes the automotive aftermarket along with other industries such as agriculture and construction.