The M18™ SWITCH TANK™ 15 Litre Water Supply Tank Assembly is an interchangeable tank powered by the M18™ SWITCH TANK™ Powered Base (not included). The 15 Litre Water Supply Tank Assembly features a dual diaphragm pump for increased durability and maximum pump life. The tank also has a wide mouth opening for easy pouring and a strainer that filters out debris from entering the tank. The interchangeable Water Supply Tank Assembly includes the isolated pump and 3m hose with quick-connect, with this deisgn allowing users to add on tank assemblies for different applications, eliminating cross-chemical contamination. It also provides users the ability to replace the tank assembly at a lower cost of ownership compared to replacing the entire water supply unit.