PVC Cap, 1/2 Fipt

This American Granby PVC cap provides a simple, secure way to close off a 1/2" FIPT (female iron pipe thread) connection in water-treatment and general plumbing assemblies. Threaded caps are indispensable for sealing unused ports, capping test points, and terminating a line where flow is not needed, and having a few on hand can save a trip to the store in the middle of a project when you discover an open port that needs to be closed.

• PVC cap with 1/2" female pipe thread connection
• Schedule 40 PVC construction
• Threaded design for easy installation and removal
• Corrosion- and chemical-resistant
• Compact at roughly 0.03 lbs each
• Inert material that will not affect water chemistry

Because it threads on rather than requiring solvent welding, this cap can be installed quickly and removed later if access is ever needed—handy for service points, future expansion stubs, and temporary closures during testing and commissioning when you may want to reopen the port down the road. The inert Schedule 40 PVC stands up to the chlorine, salt brine, and dissolved minerals found in treated water without corroding, so it provides a clean, lasting seal in filtration and softener plumbing where a metal cap might eventually rust or react with the water.

Installation tips

Apply PTFE thread-seal tape or a PVC-rated thread sealant to the male threads being capped, then hand-tighten and finish with a gentle wrench turn to bring the joint snug. Avoid over-tightening, which can stress and crack PVC threads and undo the very seal you are trying to create—a common mistake that turns a quick job into a repair. Confirm that the cap's pressure rating suits your application and stay within the recommended temperature limits during operation. A small but essential fitting to keep available for any filtration manifold, gauge port, or general plumbing project, it is the kind of inexpensive part that prevents leaks and keeps an installation tidy and professional. Inexpensive and endlessly handy, this threaded cap is exactly the small part that keeps an installation tidy, sealed, and free of the leaks that open ports invite. A few in the parts bin means you are never caught with an open port and no way to close it.