Description: Material: brass Used for adding one 3/8'' pipeline to original 1/2'' water pipe in home and business water reverse osmosis(RO) system, setting a purifier Widely used in domestic, industrial, and commercial areas Quality brass which hardly rust, excellent durability Fit for all 3/8'' PE pipe water purifier Specification: 1/2" NPT Male x 1/2" NPT Male x 3/8" NPT Purifier tube Pipe minimum diameter: 9.5mm Male thread diameter: 1/2 inch / 20mm Package Includes: 1 Piece purifier tee Note: Please check agian if the specifications of this item are adapted to your purifier and water system. Thanks