Our Generic Cobra Regulator / Converter / Vaporizer delivers superior performance and excellent pressure output consistency. Cobra offers greater service life and is ideal for applications with controlled emissions. Its primary pin design and flourosilicone diaphragm offer superior chemical resistance, resistance to over pressurization, and cold weather operation. Use of the standard blue secondary spring provides -1.5" w.c. (0.37 kPa). The optional orange secondary spring, provides -0.5" w.c. (0.12 kPa) output. C-COBRA may be used to replace the Model J, Model JB or Model K in any application. Repair kit RK-COBRA or our generic (Impco Replacement) C-RK-COBRA is available for servicing.