Just attach the faucet cap to your Recon Hardside Cooler's drain port, set the faucet on top, and let it flow. Rechargeable, it dispenses up to 150L on a single charge and the design rotates a full 360o, so filling's easy and the hose won't kink or tug the faucet off your cooler. Turns on with the tap of a finger to fill water bottles, rinse pots, or brush teeth, and turns off automatically so you don't waste water.