Review on Moen 4000 Faucet Cartridge: Enhance Your Faucet's Performance with the Ultimate Replacement Part! by James Wiley

I have several Moen faucets around the house but I was looking for a replacement cartridge for my Pegasus kitchen faucet part number RP20005. When I searched Revain and then a number of other plumbing locations there was no replacement but this part looked very close. It turned out that this cartridge wasn't closing properly, causing leaks around the faucet and cartridge area, but the reason was that the protrusions sticking out of the bottom (where the red rubber seals are) just closed were big. I used a sharp knife to cut these protrusions to the size of the protrusions on an old leaking cartridge and it fit perfectly and didn't leak for days.