DF01 KRUD KUTTER DECK & FENCE PRESSURE WASH GAL KK | Deck and fence pressure washer concentrate is the ULTIMATE deck and fence cleaner. This proprietary formulation of KRUD KUTTER contains a proprietary additive which removes tough stains from mildew, mold, algae, fungus and moss and restores the original look to wood decks and fences. Also dissolves stains from dirt, oil, grease, bird droppings, tree sap and acid rain.