The bodies of the 116C are cast from ingots of 316L stainless steel here in Minnesota. The 116C also uses the same 3/8" plunger as the 113C pump which allows it to perform up to 1000 psi. Originally developed for the oil and gas industry for injecting chemicals into remote pipelines where they needed a pump that could run on solar power and rechargeable batteries. It is also used in reverse osmosis and desalination systems. Designed to fit our 1/8hp permanent magnet DC motors in a variety of voltages.