One Gallon Bottles Sklar Kleen Low Foam Detergent SDS For Washer Sterilizers and Tunnel Washers Concentrated – Case of 4 Sklar Kleen low foam automatic washer detergent is part of the overall care and cleaning line. This product is concentrated, for a cost-effective solution. The low foam ensures trouble-free action in sterilizers, tunnel washers and automatic injection systems. The low foam Sklar Kleen gallon bottles are available individually, or in cases of 4. Five gallon bottles are also available.