IMPORTANT NOTICE : Holiday Announcement
Please be informed that Prometheus Hobby will be closed for a public holiday from May 23, 2026, to June 1, 2026.
Our online store remains open, and you can continue to place your orders during this time.
All orders received during the holiday period will be processed and shipped in the order they were received, starting on June 1, 2026.
Thank you for your understanding and patience.
The Prometheus Hobby Team
Oxygen Flashback Arrestors
In some rare situations, a flame can travel back down a hose to the gas tank and cause an explosion. This device helps prevent this reverse gas flow and flashback by using a reverse flow check valve and a flame arrestor.