TESCH POWER BRASS CLEANER GALLON BOTTLE - 4 PACKTESCH POWER BRASS CLEANER GALLON BOTTLE 4 PACK SAVE 16% PLEASE ALLOW 5 7 BUSINESS DAYS TO SHIP. Tesch's new POWER BRASS is a fast acting acid cleaner that quickly removes heavy scale build up from slides, valves, etc. And it provides a highly effective alternative to the corrosive, toxic cleaners that have been used in the industry for years. Use as a pre dip for Classic Brass: pre cleaning with Power Brass for up to one minute before immersion into