Contact
Ask us anything.
A person answers.
Questions before you buy, help with a device, a return, a warranty claim, or the question you think sounds dumb. That one is usually the one that matters.
We're two founders and a small team, not a support department. Replies usually land within a business day. If it's urgent, say so in the subject line and we'll move faster.
- Returns and warranty
- The policy, then email with your order number
- Post
- 1710 Keller Parkway #7707
Keller, TX 76248
Write to us
Email is the whole form. Put what you need in the subject, and a person will answer, usually within a business day.
support@ostarahydrogen.com →

