The traditional litter is designed with clay-based features. This is considered the most commonly used and available. Clay minerals are basically great for reduction of feline urine odors with its odor control properties. Clumping and scooping type of litter is another type which is designed with the Bentonite clay. This type is preferred because changing the clay is not often unlike its traditional counterpart.
You could also find silica gel or crystal based litter . This unit has more moisture absorbency features due to its modified and improved urine odor control. Plus, you just need to replace its base once every month. Lastly, the plant based or biodegradable litter is one type which is environment-friendly and quite easy to flush.