Spare concentrate tank for Chapin® 25 Gallon ATV Spot Sprayer. Mixes On Exit™ dual tank design keeps your water and concentrate separate until they’re sprayed. No more messy and wasteful premixing! The two mix when you spray, and with the quick connect feature it's easy to switch out tanks. You can spray pesticide, then switch to a fertilizer without having to waste unused product, or invest in two ATV sprayers. This item can be used as a replacement part, a back up, or an additional tank to take advantage of multiple applications at once.