Mister Landscaper MLM-15 Large Full Circle Micro Spray Spinner (10 Quantity) Made in the USA When installed on top of our mister-riser assemblies (mls-231) or any of our micro-stake assemblies (mls-211, mls-tan or mls-bla) If your water pressure is higher than 50 psi, we suggest you use our 50 psi pressure regulator (mla-58) We highly suggest you use our faucet filter (mlff-41 or mlff-150) at the beginning of your water source if it comes from a well, pond or has debris