Do they carry furance filters size 16x25x4

They call all sort of sizes. If it was me i would just go and look around I LOVE THIS STORE. But call them .

If you need furnace filters they have a lot to choose from

They have various sizes!

Call

I'm unsure about that exact size; however, they do carry a large assortment of types and sizes, so they likely have it.

Call them

I dont know you could call them

I believe they do. Sounds like the size we use and have gotten them there.

I have not seen any that thick there.

For your size about $14 to 20