Klean Kanteen 40 oz. Wide Mouth Stainless Steel Water Bottle fits Folding Firebox stove Boil Plate. Contact us: info@fireboxstove.com Purchase products here: https://www.fireboxstove.com/index.php?route=common/home Klean Kanteen: https://www.fireboxstove.com/klean-kanteen-bottle?search=klean%20kanteen Olicamp Space saver cup: https://www.fireboxstove.com/space-saver-cup?search=space Always use extreme caution when heating water in a metal water bottle, it will become extremely hot and never leave the cap in place when heating due to pressure caused by expansion, it could cause an explosion.