General description Sealey John Guest® Speedfit® Stem Elbow Coupling 6mm is a pack of 5 high-quality pneumatic couplings designed for use with nylon tubes. These couplings are part of a comprehensive range of components for the John Guest Speedfit® Pneumatic Coupling System, ensuring reliability and performance in various applications. Technical specifications Type: Speedfit® stem elbow couplings Size: Ø6mm Pack size: 5 Material: Acetal copolymer engineering plastic O-rings: Nitrile rubber Collets: Acetal copolymer with stainless steel teeth Other information