The Dakota Dash 3.5 with Dakota Guard is an excellent way to keep your pet's water stores mobile. Originally designed for hunters, this portable water bowl holds up to 3.5 gallons of water. To use the unit, lift the handle end and remove the rubber plug and store on the bottom of the unit. Once on the ground, water will continuously backfill to ensure your dog doesn't run out. When it's time to go, tilt the unit up to return leftover water inside the carrier and push the plug back in place. It's great for trips to the woods, fields, vacation, or even as a regular water station at home. The Dash 3.5 is designed with the same process as military cargo cases and industrial tanks, so it is tough. Toss it in the back of the truck without worry that it will crack or break. The Dash 3.5 plastic construction is not only durable but safe and BPA-free. Dakota Guard is an environmentally and food-grade safe additive that is included in small quantities during production to protect your pet's health and safety from the invisible world. Just another way Dakota 283 is committed to keeping your pets safe!