Block Tester BT-500 Combustion Leak Test Kit - Made in USA

The Block Tester by Test Tools is a complete combustion leak tester and comes in a kit with enough fluid for 16 tests. There are no additional tools needed, and no need to tap into an engine vacuum source. Works with virtually any liquid-cooled internal combustion engine or generator with a closed cooling system including: gasoline, diesel, propane, natural gas and other alternative fuels. Large, single-chamber design provides greater accuracy and uses less test fluid.

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