PURIFIED N-BUTANE R600 6.5KG is designed for herbal extractions. You should only use the most PURE Butane available. DO NOT use lighter and BBQ Butane cans which can be Toxic and dangerous.
Puretane is a clean butane fuel manufactured in the USA to extremely high standards of quality. Puretane is 99.9998% pure N-butane, with only 0.0002% Isobutane.