Two Guys Garage #2640 4-Step Professional Air & Fuel Maintenance Kit
What is HEST?
HEST – “High Energy Solvent Technology,” a Berryman exclusive, incorporates the use of strong solvents, as opposed to weak carriers and diluents such as mineral spirits or kerosene. As a “tip of the cap” to our HEST technology, positive feedback regarding any of our products is affectionately referred to as a HESTimonial.