Watts Water Quality & Conditioning Products offers a complete line of pre-engineered RO, backwashing filters and softener systems to satisfy most commercial applications with up to four-inch (101.6 mm) plumbing. Design modifications to fit your specific application such as skid mounting, pre-plumbing and wiring are available on many systems, with documentation that includes CAD drawings for submittal packages upon request. http://www.watts.comwqp@watts.com