The Comet spout Maxi L with integrated exhaust valve for water canisters is the perfect solution for anyone looking for a simple and efficient method of pouring water. Designed to avoid the problem of vacuum in conventional water canisters, this spout allows a smooth and controlled flow of water by allowing air into the canister as water is poured out. This prevents the intermittent pouring that can result from a vacuum impeding the flow of liquid.