@Buttonstc I purchase the pads via Amazon’s Subscribe & Save.
I can tell you with 4 cats, I go through 4 pads per week. However, when I was socially training my kitten, he had his own box, and I went through less than one pad per week.
Usually, my case price (40 pads) is about $37. For some reason today on Amazon, the pad price is up to $1.18 per pad. That’s a little high, but our local PETCO also carries the full supply of pads & pellets.
I haven’t used any other pads as I always have at least one case on hand. But, I see no reason why another pad wouldn’t work. As long as they’re absorbent they’d work fine. I have one cat (large black male) that pees about 2 cups worth at a time (I kid you not). He’s the reason I wasn’t able to toilet train my kittens…Since he needs a box to go in.
My number one suggestion for anyone with a smart cat that’s under the age of 4yrs is to toilet train. Don’t buy a kit, use the free instructions on the Net. It’s the cheapest & most hygienic option there is.