Madison, S.D.-based G.A. Murdock Inc. announces that the 100 performance-tested, Osmonics residential encapsulated membranes are available in models producing up to 150 gallons per day. These membranes offer a sanitary, time-saving installation at an affordable price. The encapsulated membranes are available with built-in concentrate flow controls and permeate check valves. Standard non-encapsulated membranes are also available.