John Guest PP220808W Stem Elbow Connector Polypro - 1/4 Stem x 1/4. John Guest PP220808W Stem Elbow Connector Polypro - 1/4 Stem x 1/4 Features: White polypropylene construction EPDM O-ring FDA approved material NSF Certified 51 & 61 Suitable for water & food applications John Guest PP Series Polypropylene Fittings