CFS-2 CHEM-FEED® Aluminum Duplex Skid System The prefabricated design allows for easy installation, simply drop the Skid System in place and make your connections. Technical Overview: System Type Duplex pump system Product Compatibility A1, A2, A3, A4, CD1, CD3, C2, C3 Frame Material Powder coated aluminum Mounting Position Floor or Wall PSI 150 Bar 8.6