I've been looking for these repair parts for over a year, but wasn't putting the proper descriptors into the Google search. A month ago I finally got serious and spent an hour trying to track down these parts. BTW...the company I originally bought the mister from was not helpful...at all...and needs to find people who are good on the phone with customers. I love their products but won't buy from them again.The replacement discs some in two sizes, so make sure you measure the original parts so you order the right parts. 16 mm was what I ordered. It took three weeks to get the discs, but that was no surprise since they are not stocked by Amazon. The price was fair. Shipping was free. They came yesterday and it took me (literally) two minutes to install the replacement disc. No muss...no fuss. So my $70 mister that was broken for more than a year is now working like a champ. I'm very pleased with this transaction.