Review on 🐱 Calming Comfort Zone Basic Multicat Refill - 6 Pack by Sidewinders Murphy

Feliway Multicat has helped us integrate our new cat into our home (relatively) seamlessly. But lately she's been acting more aggressively, and we were wondering why. We also couldn't figure out why the bottle of this product was half empty even after 6 weeks. I think I know why: We used this product with our old style diffuser. The refill bottle has a slightly different shape and it looks like they are not compatible. Our old diffuser is all dirty and started to smoke a little. Do not buy this product to use with an old diffuser! This product requires a "comfort zone diffuser" which is more cylindrical. The old diffuser bears the inscription "ceva feliway" and has a rather round shape. The bottles look _almost_ the same - you'll never tell the difference unless you put them side by side. One star off because the compatibility issue isn't very obvious in the item description.