I need a water container that's square, made of HDPE for water storage, and is one gallon. I'd like something like the one gallon gas containers, which are a perfect fit, but have plastic that imparts a bit of a taste since I guess the one I tried is polyethylene. And the spout was awful. Seems strangely hard to find. Something like the Sceptre 2.5g in a one gallon size would be nice.