Neoperl 13 0000 5 Standard Flow Cache Perlator HC Aerator, Tom Thumb Size, 2.2 GPM, Aerated Bubble Stream, M16.5 x 1 Threads, Polished Plastic Finish, California Title 20 Compliant

This aerator is almost impossible to find locally. I got it here on amazon and it is a perfect fit for my Delta bathroom faucet. It came with the wrench to screw it in the faucet also. A little pricey with the shipping cost but if you need it just have to pay the price. I will buy it again.

I purchased a Hans Grohe Cento faucet from Costco. Surprise! This faucet splashes water everywhere. Well made except instead of an aerator it uses a laminar flow part made by Neoperl. Hans Grohe does not offer a replacement aerator. Here is how to replace it with the part sold on Amazon. Use the red tool that came with the faucet (likely clipped to the faucet hose) to remove the part from the end of the spray hose. The yellow tool from Neoperl is not needed. Slide the central part out. This is the Tom Thumb sized, Neoperl laminar flow part. Note it is not threaded, unlike the aerator parts offered by Amazon. Prepare two pieces of tape to protect the parts. Use one piece to protect the grey portion, and the other piece to protect the white portion. Using two pairs of pliers gently pull the parts directly away from each other. They will easily snap apart. Do the same with the new aerator. The grey threaded piece and the two small screens on the back of the old part are not needed. Snap the new white part (aerator) onto the grey, unthreaded portion of old part. Reassemble faucet. You will hear the aerator working as it creates a faint hiss not present with the old part. Splashing should be reduced considerably. Note this part, color coded red on the back, is 2.2 gallons per minute and is the maximum flow available. The Cento's anti-siphon check valve is rated at 2.2 gpm maximum. In my case I wanted better flow so I don't have to wait quite so long for hot water to arrive at the faucet.

I bought this item because our ridiculous state rules don't allow enough water flow to make our sink work at more than a trickle, and local NYS stores can't sell them in this flow rate (at least I don't think so). It's probably more of a problem when you have a well like I do and don't have the water pressure of a city system. A bit expensive because of the shipping for one little item, but it works.

This fit perfectly on my Delta Shiloh kitchen faucet. I would have given it 5 stars, but the flow is the same as the OEM one. I was hoping this one would increase the water flow, but it did not. I would have thought the 2.2 GPM would give me much better flow as I replaced my bathroom faucets with 2.2 GPM aerators and it made a big difference. Oh well, I tried. The OEM was either a 1.2 or 1.5 GPM.

Our municipal supply delivers water along with occasional tiny gravel that plugs aerator screens. The master bath faucet was down to a trickle and repeated soakings of the aerator in vinegar did not restore flow. I order this replacement which is installed and works great. Thanks!

Barely any water was flowing out of my faucet. I tried removing my old aerator and soaking it in vinegar overnight. That did nothing. I ordered specifically this high flow aerator, and once I installed it, it was perfect!

The aerator fit fine but thev yellow key was the wrong size. A blue key is what fit the old and new aerator.

This size is not carried by any store in my area. After trying every other size, a plumber was able to figure out I needed the Tom Thumb size for my Delta bathroom faucet. Came straight to Amazon, as one does, and found this one. Shipping took a while, 2-3 weeks, but I’m not going to ding them because it worked! Keeping the little ‘wrench’ that was included for future use.

worked, quick and easy, do wish they put part numbers on them so you can find your correct part easier, this one did not quite fit but made it work