Germ Guardian FLT4825 HEPA GENUINE Air Purifier Replacement Filter B for GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA and More, 1-Pack, Gray

I purchased the GermGuardian and replacement filters bc my daughter bought it for her house. I have not replaced the filters as of this date. However, the filter appears to be easy to install.

I put the new filter in and the red light keeps flashing. Why is this?

I tried to use an aftermarket part from a different supplier and they did not work. The case has a tiny limit switch at the bottom that must be depressed for the power to turn on. The aftermarket part had a cardboard case with a foam seal and not enough regidity to depress the switch. I returned those and ordered these original supplier parts. They worked perfectly when installed. These are the only parts I will order in the future. More expensive but they work.

Says change filter when red light flashes. Red light continues you flash even after installing new filter. Why??

So please this filter is so easy to replace!

Description is correct for this product.

Nothing

Good price and got them fast.

Great price and easy to order.

I have 3 air purifiers; 2 of which fit this filter. Works wonderfully!