I also love these replacement cartridges. They work perfectly with the litter genie and are a much better deal. I've never had one break and the odor control is great. They are 21' long as opposed to the name brand which are 14' long and they are cheaper than the name brand. This is a great product and I strongly recommend it to the more expensive alternative.

I was purchasing these on Amazon, but they stopped being available there. The shipping from this site was free and I bought two sets of 4.

FIRIK Litter Genie Refill for Litter Genie Standard & Plus & XL, Large Capacity of 21 Feet, Pack of 4

  Fast and efficient

FIRIK Litter Genie Refill for Litter Genie Standard & Plus & XL, Large Capacity of 21 Feet, Pack of 4

  I have been using these cartridges for the past year or so, and found them superior to the Litter Genie cartridges due to increased bag length and---most importantly---the little sticker identifying the start of the bag. Once I started using these, changing the cartridge no longer was a dreaded affair. So when Amazon stopped carrying these for whatever reason (my suspicion is that Litter Genie objected to the competition), I went hunting for an alternate source. I was more than a little concerned about purchasing from this shop, but pleasantly surprised when my order arrived 6 days later. I'm here to place another order for a backup supply now...

FIRIK Litter Genie Refill for Litter Genie Standard & Plus & XL, Large Capacity of 21 Feet, Pack of 4