The G225 series is our recommended series for particularly smelly trays due to the active carbon ingredient, which locks in odour within each clump to provide maximum odour control. Suitable for cats of all ages and has the largest granules in our grey range, made from our white and grey Calcium Bentonite litter and Activated Carbon granules. As with all VanCat litters, simply fill the tray to 7cm in depth, then scoop out the clumps as needed. Providing you top the litter back up, you will never need to empty the entire tray. For the best results Fill the litter box with 7cm of cat litter. Remove the clumps and solid waste daily as necessary. Always refill to 7cm.Product Details 100% natural Long lasting Super clumping Maximum odour control High absorption 300% – 330% Granule size – 0.6 – 1.8mm