Viper High Performance Foam Tube CEP3012MODEL #CEP3012 Low Expansion Foam Tube, 8: 1 to 12: 1 Expansion. Fits Viper Models SG3012, SG7515, SG9520, SG12250, CG2510, CG5016, CG8020, FT2510, FT5016, FT8020 and FT12250. Viper Foam Equipment is constructed of E lite aluminum that is Hard anodized for durability Viper Foam Eductors and foam nozzles work on the Venturi Principle to mix foam concentrate and air into the water to make finished foam Features: Hard anodized Aluminium body 100 psi