The SharkBite barb connection system is the best option for connecting PEX tubing in water distribution systems when lower material cost is desired. Robustly constructed with DZR brass and are corrosion resistant. NSF approval.
GAF H&R PEWTER GRAY 20LF$84.29
2" DWV 45 DEG Elbow$2.29
1/2Barbx1/2FPT Elbow$3.99
2" DWV 90 DEG Elbow$1.89