• Round and square compost bin filters: filters absorb odors produced by composting bins, let your kitchen smelling fresh and clean, combination of two shapes filters works better.
  • Easy to use: just shoved the replacement filters into the compost bin lid, the square filters will also work in round lid because the rim will hold it up fine.
  • Material: replacement filters are made of activated-charcoal, please do not rinse and filters can provide a better effect.
  • Dimension: square shape filters side length is 4.75 inches,round shape filters diameter is 6.75 inches, compatible with most stainless steel compost pails, also can be cut into any shape according to actual size.
  • Package includes: 6 pieces of round shape and 6 pieces of square shape compost bin filters, filters should be replaced every 2-3 months, this pack enough gives you min 1 year or more time supplies.

Helps with smells, sometimes little buddies will start living in it but they’re easy to replace and if necessary, bleach.

These filters are the same thickness as the ones they proclaim "are the best" LOL Don't get befuddled by the 4 or 5 dollar filter...they probably all get them from the same place in China plus their ridiculous marketing spin to get you to buy theirs......

I use them for my cat's litterbox. They seem good for the price.

One day delivery. What's not to love. These work well in our under the counter compost bucket. Feels good to do our part to reduce landfill waste.

Works. Cuts down on the stink.

When I got my countertop compost pail, I didn't realize that there were two charcoal filters in the lid/cover of the pail. After about six months, we started to notice that the pail had an unpleasant odor, even when it was empty. Finally, I realized that the filter should be replaced every couple of months. These new filters do a good job of reducing, if not eliminating, the compost odor.

These filters fit well and do a great job of keeping odors down. I don't always empty the compost as often as I should, and I appreciate the effectiveness of a good filter!

These are just typical filters, at a good price. I'm confused that they sell the two sizes/shapes as a bundle since I would think most people would need one or the other. I need the big round ones, not sure what I will do with the smaller square ones. Still, a good price even if I can find someone to give the square ones to.