Schedule 40 PVC Pipe FIPT X FIPT Coupling

Coupling for Schedule 40 PVC Pipe (FIPT x FIPT). If both pipes that you need to join have threads on the end, you will need a threaded coupling or FIPT by FIPT coupling. The abbreviations simply stand for female inside pipe thread and mean that the coupling has female threads inside. A FIPT coupling has female threads on both sides, meaning that both of your pipes will need to have male threads. All of our Schedule 40 Fittings are NSF Rated 61, which means they are certified for use with drinking water. NSF stands for National Sanitation Foundation. If a pvc pipe fitting is NSF rated it means it has passed very strict standards and test procedures and is certified for use in residential or commercial plumbing projects.