Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low View: 9 18 All Quick View Quick View Coolant, Cooling, FluidsRed Line Water Wetter – 12oz. #80204 $13.89 Red Line Water Wetter - 12oz. #80204. Red Line WaterWetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30ºF.Add to cart 1 2 3