Yes, the Hunter 213600SP Hunter Pro Series Shut Off Cap is designed for this purpose. You can use it to stop a pop-up sprinkler from spraying by removing the nozzle and replacing it with this cap. This cap fits Hunter Pro-Spray heads, PRS30, and PRS40 heads. It comes with a rubber O-ring, so no Teflon tape is required for installation. Just make sure your sprinkler head is compatible with this cap. If you have any other models like Hunter PGP, PGJ, or I-Series rotor heads, this cap will not fit.