I don't believe there are any companies that do - as there's no need.
I you want one, you're most likely going to have to fabricate one yourself, or have a welding shop make one up or you. I would expect it to cost several hundred dollars - as fabrication time is not cheap ($75+/hr)
To chemicals? Everything is chemicals.
It strikes me as a bit strange that someone is worried about giving their chickens a plastic water jug because of 'leaching chemicals', but is willing to fill up a water jug for them and pour in bleach, a strong oxidizer - something that is hazardous at...