Here’s what consumers have asked with answers from 123InkJets staff and previous consumers.
Wish I could answer but never had a problem with the company with sonic fast shipping and all ink bought had no problem with.
Legit I order about twice a year from them the past few years. And I go thru Befrugal to get cash back. I do receive emails when they are having a sale like 15% off ink so that is when I buy. Win win for me.
In 10 years it has never clogged my printer heads.