Cat Water Fountain Filter,Arc-Shaped Sponge Activated Carbon Cat Fountain Filter compatible WF050 & WF100 Automatic Pet Water Fountain (6 Pack)

RECOMMEND FOR ANY CAT PARENT! These little water filters work very well. Be sure to let them soak in water for a few minutes before using installing it into your water filter. I recommend any water filter with made with charcoal. You can get them to last more than a month if you clean out your cats water filter (but keep the filter). They have made my cat's drinking experience better and they actually drink more water because the water stays filtered and clean for so long.

They fit and do what they're supposed to do.Price was great

These work perfectly with my cat fountain. I wasn't sure if it would fit but it does and my cats still drink the water and don't notice the filter is any different.

I use for my motorized water dish for one cat. Feel everyone should use this situation. Water bubbles out and is always fresh and I also use bottled water... not tap water.

I've tried 5 other filters, these are the best quality, longest lasting filters I've tried