Our most powerful odor-controlling litter! Dr. Elsey’s Ultra+ Clumping Cat Litter is our longest lasting litter with extended odor control and premium performance. Ultra+ is perfect for single or multi-cat families. What makes it stand out is a proprietary blend that delivers the best odor control available! This extended odor control is accomplished without any perfumes or deodorants, while maintaining the hard-clumping performance that Dr. Elsey’s is known for! It’s proven to drive usage through a unique formulation of heavy non-tracking granules with medium grain clay. Backed by our 100% Satisfaction Guarantee!