The perfect "traditional" cat pan liner
I have large litter pans for multiple cats, and these have served well for many years. They were designed to fit rectangular litter pans with clamp-on lids (covered or open) I use them with old-fashioned clay litter; no complaints.
ProsThese have vanished from supermarkets and pet stores, and are generally available only online. Pet Guys has the best price, plus speedy delivery.
ConsMy only "complaint" is that they are frequently "out of stock" when I try to place an order, and the store doesn't take back-orders.