FELIWAY MultiCat Calming Diffuser Refill for Cats, 30 day, 1 count - Chewy.com

Feliway MultiCat Calming Diffuser Refill for Cats, 30 day

By Feliway
Rated 4.1955 out of 5 stars

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$19.75Chewy Price
$27.99Chewy Price
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About This Item


  • A drug-free solution that helps reduce common signs of tension between cats at home, including conflict, fighting, chasing, blocking.
  • You can start to see results as early as 7 days.
  • Mimics a mother cat's natural pheromones to help restore harmony.
  • FELIWAY is vet recommended.
  • Covers up to 700 square feet. For the best results, position the diffuser where your cat spends most of his or her time, and avoid plugging the diffuser in under shelves and behind doors, curtains, or furniture.

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Help reduce tension and conflict amongst your feline friends by pairing this refill with Feliway MultiCat Diffuser Plug-in + Refill!

Questions & Answers

44 Customer Questions

Does this help with two male cats that atent neutered?
Answer by ChewyMar 29, 2018
We'd recommend using the MultiCat system in the room where the cats frequent the most, it should help calm and reduce tensions.

I first saw these in my Vets office. Was skeptical, but put several around the house. (I do Cat Rescue, and have a mini cat hotel in progress) The results were noticed within a week. With so many diffusers a large economy refill bottle would be nice :)
Answer by ChewyJan 19, 2018
At this time, this refill is only available in a 48 milliliters bottle.

Does it matter if the outlet is higher up on the wall or does it have to be closer to the floor?
Answer by ChewyMay 15, 2018
Plug diffuser unit into the room where the cat spends the most time. Avoid plugging in the diffuser under shelves, behind doors, behind curtains, behind furniture. Doing this will impair diffusion.

Is it okay to use the multicat refill in a diffuser that originally had the classic used in it?
Answer by ChewyDec 24, 2020
Feliway Classic and Feliway MulitCat refills and diffusers are interchangeable.

ReviewsWrite a Review

Rated 4.1955 out of 5 stars
1023 Ratings
Would recommend to a friend

1023 Customer Reviews

Rated 5 out of 5 stars
By Hilseph on May 31, 2023

Huge improvement

If they’re not running, I’m cleaning up cat pee. One of my cats will pee on things at the slightest inconvenience. My vet recommended these and they worked. Occasionally the cat will still pee on things but when she does it’s because I forgot to change the diffusers and they ran dry. Been using them for about 2 years now and they have significantly improved my quality of life and reduced the amount of vinegar I buy per month.

Rated 1 out of 5 stars
By Marty on Jun 2, 2023

Feliway multi-cat plug-in

I did not witness any difference in behavior amongst 4 adult cats (mama and her 3) who have occupied one very large room for 7 years. Room has lots of cat condos, places to sleep, toys, windows to look out/sit in. Seems to be a lot of hissing the last couple of months.

Rated 5 out of 5 stars
By SixCatHouse on Apr 17, 2023

It really works!

We have six cats and one is the meanest animal on the planet. Seriously, she hates everyone and everything. We tried these thinking there's absolutely no way they work. We were wrong. She is a different cat. She will be in the same room and sleep next to other cats now! That used to be unheard of. She no longer growls at the other cats and is near enjoyable! Never thought this stuff would work, but thrilled it has.

Rated 4 out of 5 stars
By Irishblue on May 3, 2023

Seems to be working

I have a 7-year-old male, Bailey, who has become frightened of routine things like even changing and washing the litter pans. It started when I rescued a male kitten who has now grown into a rather large cat. I started using Feliway MultiCat and it seems to have calmed Bailey down a little, but not entirely.

Rated 5 out of 5 stars
By Shells on Apr 18, 2023

$$$ saver/ God send

If someone had told me about this product, like my VET! I could have saved 800$. I suggested it because I had a cat that was stressed not peeing. I made sure there was nothing wrong with him, then 2 months and 950$ later a friend suggested this. All my cat issues have went away. If you have a multi cat home this is the way.

Rated 4 out of 5 stars
By Joey on Apr 25, 2023

Not always a win -but sometimes

I’ve had amazing results with this product in the past but for some reason this time the cat hostility situation is a little more intense that usual . Hopefully it will kick in . Because of past successes I’m going to keep trying . It’s only been a couple weeks so we will see .

Rated 1 out of 5 stars
By Megs on Mar 15, 2023

Was hoping for better

I had hoped the higher star reviews would have held up. I had a previous diffuser with a different brand that worked great and thought I might try this one out instead since it was more affordable. But Ive had this diffuser in for almost three weeks and our cats are fighting as if I never plugged it in. Our roommates young cat hasnt gone twelve hours without attacking our older female, where we can no longer keep them in the same room. Really disappointed.

Rated 5 out of 5 stars
By Tianna on Feb 18, 2023

Magic diffusers!

I had my first cat for two years since he was a kitten and brought home another male cat, a rescue who is approximately three. My first cat was defensive, territorial, and stressed. I started using the diffuser at the recommendation of a vet after about a month of slow introductions. Within a few days my first cat was starting to play with the new cat. By a week they were sitting near each other when I was with them and by a month they were getting along fine. Its been almost 2 months now and they like playing together and even nap next to each other.

Rated 4 out of 5 stars
By Marion on May 29, 2023

Effective Product

Feliway has helped calm my one cat and her aggression towards the others. She no longer attacks my other cats and seems more relaxed.

Rated 2 out of 5 stars
By Tracey on May 22, 2023

Don’t think it worked

I have two in my house and our cats are still crazy and fighting. I don’t think the diffusers are making any difference at all unfortunately.