Carbon Activated Pre-Filter 4-pack for use with the Germ Guardian FLT4825 HEPA Filter, AC4800 Series, Filter B By Complete Filtration Services

Easy to replace

Just what I needed

Bad thing is to small for my machine, maybe was bad measured in the supply.

The unit covers my entire lower level of my home which includes the kitchen living dining room and sunroom, its a very powerful device. Great product for the price.

I hadnt bought these because I hate how much money it takes to keep up with the HEPA filter in my filter-fan, but I indulged because my allergies have been so bad and I have a dog, plus I hoped these would lengthen the lifespan of my filter. They do! And actually, there are five of these in one box and theyre washable so you can make them last longer! Plus, carbon filtering is so good for you. Worth it.

Like the way they seem to clean the air. Expensive filters however.

Should come in a roll and then you cut to height. The 1/4 inch mesh pr-filter was the right width but each was about 1/2 the height needed to fit on my primary filter. (took two). It would be nice also if they included a roll of double-sided 1/4 inch adhesive to adhere the pr-carbon mesh filter to the primary filter. Had to use some I had on hand.

I bought this to go with the filter that it lists in the title but I had to cut it to fit the filter. Not completely compatible

Direct replacement, fits perfectly.

These work great! Its nice having the extra so I can just rinse off the dust and put it aside to dry and grab a dry, clean filter to use. Ive rinsed mine several times and they still work well. Yes, they are slightly larger but I havent altered them and they work just fine.