4 Pack C545 Replacement HEPA Filter Compatible with Winix C545 , Ture HPEA Filter S Only, Part number 1712-0096-00

How can I tell the front from back? Last filter was marked with an arrow. This one is not marked.

It was easy to switch out. It fit perfectly as described, and the air flow through the filter and pad provide great air quality.

Cost less than named brand & works just as well!

The black charcoal parts are too big and the white fliter its self is wayyy to small and leaves gaps. Don’t waste your time

They are exactly what I was looking for.

Ease of ordering, the correct item, fast.delivery, fits on air purifier, everything is great

Easy to install

Prefect work with C545 air cleaner.

Easy to install and its a perfect replacement filters. Will order them again.