Superstrut 3/4 in. Strut Fitting Universal Strut Pipe Clamp - Silver Galvanized Z703 3/4EG-25 - The Home Depot
26.9mm 3/4 inch tube clamp fittings - Fastclamp, Kee Klamp, Interclamp, keyclamps and Q Clamp3/4 inch C41 Clamp On Tee keyclamp tube/pipe clamp direct from Hacketts Pipeline - Hacketts Pipeline