It can be very easy to order the wrong size PVC if you measure your pipe incorrectly. PVC pipe is measured by the INSIDE diameter, Our PVC Fittings will fit all furniture grade PVC and Schedule 40 PVC Pipe. Schedule 40 has the size printed right on it. If the size is not on it, then please measure the inside diameter, or print our Size Guide to measure your pipe.
If you measure the outside diameter, then you will need to use the PVC Pipe Conversion Chart to determine which size PVC Fittings you will need. If you don't use this chart, it will result in you ordering the incorrect size fittings and receiving the wrong size fittings. Never order PVC fittings based on the Outside Diameter of your pipe without using the Conversion Chart.