Since MARK-3® was first introduced to WAJAX in 1964, and the 4-level detachable pump head was patented in 1958, it has become the standard field portable fire pump used by forestry fire bureaus all over the world. The MARK-3® fire pump is a truly outstanding and reliable performer. It can withstand the rigors of fire protection and is the core of most water delivery systems in field operations. MARK-3® has always been the benchmark in terms of performance, reliability and durability, benefiting from a series of improvements in its key components, namely the Nicartin-coated cylinder, immersed crankcase and maintenance-free pump end.