All Snowpulse Cylinders are sold with a set of burst discs installed and a three-pack of extras. Extra burst discs can be purchased in packs of three. You will need to utilize a new burst disc every time you refill your cylinder.
Highmark products are shipped via Courier in Canada and the USA. Accessories are shipped via Postal Service. All Airbags ship free in North America, excluding Alaska. Full Cylinders ship for $10. Due to Transportation of Dangerous Goods regulations FULL cylinders cannot be shipped to AK or NL.