Push connect fittings straight coupling push-fit fittings lead free size 3/4 inches x 3/4 The SharkBite Connection System is an instant push-fit connection that connects copper tubing, CTS, CPVC and PEX pipe in any combination – no ering, clamps, unions or glue required. Certified to 200 PSI and 200DegF. Compact, robust DZR brass body. Fo undation of a strong, corrosion resistant, durable fitting. Design certified to ANSI/NSF-61 and ASSE 1061 product standard for use in potable water and hydronic heating water distribution. Approved to be used underground and behind walls without access pan els. Lead Complaint.. Specifications Weight: 0.21; .