K&H Pet Products Cool Bed III Cooling Dog Bed The K&H Cool Bed wicks heat out of your pet and releases it into the air. The water-saturated Cool Core inside this dog cooling mat absorbs the heat produced by your pet and coverts it to room temperature. The difference created between the room temperature and the dogs body temperature is how the Cool Bed III provides a cool, refreshing surface for your dog. If your home is 80F, then the Cool Bed III is 22 cooler than your pet's body temperature. This cooling pet bed is size Large(32" X 44") and is the color gray. Comforts pet arthritis, skin disorders, dog hip pain relief and more. No weight limit, great for large dogs, small dogs, and even cats that like a cool spot. Made of a durable nylon/vinyl exterior. Recommended for indoor and outdoor use. 2-year limited warranty. To activate the Cool Bed III simply add water, no tools needed. The more water used, the more cushioning and cooling capabilities the dog cooling mat will have. You can experiment for the optimal feel of the Cool Bed III. The recommended amounts for each size are: Small: 11.5gal / Medium: 23gal / Large: 46gal The Cool Bed III can be used year round and only needs filled once. It can be stored full or empty. To help prevent bacterial growth, try adding GSE (grapefruit seed extract) to the water. GSE is a natural non-toxic antibacterial that helps prevent bacterial growth. Works best when placed where direct sunlight will not reach the Cool Bed III dog cooling mat. Perfect on linoleum, cool tile or concrete floors. Easy wipe down cleaning using damp towel and mild detergent. No need to refill and never dries out.