All our plastic pipe fittings are made from 100% new material, so the fittings are stronger and more durable. We have thickened the design and structure of the pipe fittings, so the life of the pipe fittings is longer than that of ordinary pipe fittings. For quality, our plastic pipe fittings all meet international standards, so you don't have to worry at all. It is worth mentioning that we can provide free samples, if you want to know more info, please contact us.