A small pipe replacement starts with the markings on the old pipe. The Mayii listing is for Finolex ½-inch UPVC pipe marked SC-40 and sold by the foot.
Read the marking before matching fittings
Copy the material, nominal size and schedule from the printed line on the pipe. If you’re matching an existing run, take a photo of that marking and one of the fitting you need to join. Ask your installer to confirm the joint type and compatible fitting.
Write down the lengths you need
Measure each run separately and let your installer confirm the cut lengths and allowances. If you need multiple pieces, confirm how those lengths can be supplied before ordering. The quantity on this listing represents feet.