Product review (5 stars): Bigger than expected but still work.
I got these for my slant fin humidifier.
They looked exactly right from the pictures and are cheaper than the slant fin oem pads.
When I got them I realized they were almost twice the diameter and expected to cut them all down.
However they exactly fit on the higher step of the slant fin boiler and seem to work just fine.
I expect they being bigger will all or them to last longer as they absorb minerals from the boiling water.
Was a good surprise after being surprised they were bigger.