you can pick up the canisters at most any camping store. they come in a few sizes.
The coleman exponant beats the pocket rocket in the specs dept.price is the same. Heres the lowdown, pocket rocket: 3.2oz, boil time: 3:58 min, pack size; 4.1X 2.1 X2.0
coleman exponant ultralight F1 2.7oz, boil time, 3.43, packed size 3X 3.1X 1.6
check this link for others specs and models
http://www.rei.com/online/store/CategoryDisplay?catalogId=40000008000&langId=-1&storeId=8000&categoryId=4500453#
The coleman exponant beats the pocket rocket in the specs dept.price is the same. Heres the lowdown, pocket rocket: 3.2oz, boil time: 3:58 min, pack size; 4.1X 2.1 X2.0
coleman exponant ultralight F1 2.7oz, boil time, 3.43, packed size 3X 3.1X 1.6
check this link for others specs and models
http://www.rei.com/online/store/CategoryDisplay?catalogId=40000008000&langId=-1&storeId=8000&categoryId=4500453#