A.Y. McDonald Mfg. Co. 3805 and 3806 service saddles are designed to give a positive water-tight seal with full support to the PVC pipe, without cracking or distorting the pipe. Order the correct saddles for your use from the charts below. Not for use with ductile iron, asbestos-cement, cast iron pipe or copper tube. The pressure capabilities equal but do not exceed the working pressure rating of the pipe up to 200 psig.