RO Membrane Housing Elbow Connector Suited for all types of RO Models- (1/4″ OD Tube x 1/8″ Thread), Suited/Compatible for RO all Model which uses 1/4″ Size – Small size RO Tube, Also Suited for Aquarium Tank or Pet Water Tanks or any Liquid Tanks where inlet and outlet flow is required These Elbow Connectors are commonly used in all RO cabinets for connecting RO tubes and pipes for inlet and outlet water flow. Suited for RO Membrane Housing Which Uses 1/4″ Size – Small Diameter RO Tube. Also Ideal Product for Lab Purpose/Research/Project Design/Demo Work who would like to Explore the Functioning of the Various RO Filter Components in a Water Purification Units by Cross Section Analysis