You can get plastic PET bottles from most homebrew supply stores, i bought mine from northern brewer.
They're great & made to withstand the pressure.
"EC-1118 is a monster yeast. But it is also clean and quick. Like a humane serial killer."
1 Gal: Redneck Metheglin
1 Gal: Grape Concentrate Wine
1 Gal: Backyard Grape Wine
5 Gal: Oatmeal Stout
5 Gal: Citrus Pale Ale
Bottled: St Paul Porter, DIIIPA, Strawberry Melomel, Rhubarb Melomel, Oktoberfest, Barley Bracket, Munich Helles, Black Bracket
Kegged: 12/12/12, Citrus IPA