Ultrasonic Record Cleaner 40 v 80 v 120 kHz

Thank you all for the reples.

Yes, I agree with you dogberry, one can spend considerably more for a 120 Khz machine vs. a 40 kHz machine, the latter of which can be purchased for $200 from China. 

I am considering the Degritter (120 kHz only I believe) or a machine from Cleaner Vinyl, now selling triple frequency machines.  

https://www.cleanervinyl.com/shop-multi-frequency-cleaners.html  

George Merril also sells an inexpensive machine - $200. He claims it is as good as US. Relies on a jet of water from your faucet. 

Part of me thinks an ititial manual cleaning using the Merril machine followed by a US cleaning at a higher frequency is the way to go. But this is just a hunch. I need to do more homework. 

Antinn, wow great post. The links provided are a great resource. Thanks for sharing. By selecting the links you provided, I was able to navigate to your book on cleaning records, V3.1. What a great resource. After reviewing the chapter on US cleaning, I take it you do not have a US machine. I apologize if I missed an explanation in your book, but may I ask why not? Do you feel other alternatives are just as good? Thanks for any words of wisdom you care to share.  

Speaking of iSonic, which of these two options would do a better job? 
 

https://isonicinc.com/products/cs6-1-pro

https://isonicinc.com/products/p4875-2mvr10

Well, thanks again everyone, all great info. 

I should mention that I did purchase the Gem Dandy hydraulic cleaning machine. It is inexpensive and at least according to George Merril, it works well, as good as US. 

I was also considering the CS6.1 Pro. I figured after hydraulically washing 10 records, I would give them a second US cleaning, rinse and then spin dry. But based on the comments and a review by Fremer, it seems that iSonic is not really an US machine. 

I am starting to think the best option for US is a basic Vevor $200 cleaner. The unit has 180W of power. After US cleaning, I can use the Merril for a 2nd cleaning and rinse.