Contact Us

Monday through Friday
9:00AM - 5:00PM Pacific Standard Time

We receive many emails, messages, and phone calls about commonly asked questions. Please see the FAQ below to answer these questions BEFORE you contact us. Any questions covered in this FAQ will NOT receive a response via email or message.




Q: I need a replacement part for one of your products. How do I get one?

A: We have part packs available for multiple products on our online store.


Q: What is covered in your 90-day limited warranty?

A: Our warranty covers manufacturer defects. Our warranty does not cover damage(s) that are caused by user error/misuse/negligence.


Q: When does <product> come out/ship?

A: If there isn't a date provided, we do not have that information available.


Q: Is Sub Ohm Innovations going to make/making <product>?

A: If we haven't released any information, we do not have any information available.


Q: How do I get sponsored by Sub Ohm Innovations?

A: There isn't a right answer for this. Sponsorship is based on many factors and, if interested, we reach out to those we would like to sponsor.


Q: Will you please contact me when <product> is back in stock?

A: Unfortunately, we do not have the time to respond to this type of e-mail. If the item is not in stock please check back frequently to see if the item is back in stock. 




Q: What is the difference between the Legendary SZCM and the Shorty SZCM?

A: The Legendary SZCM is longer and has a locking switch. The Shorty SZCM is shorter (surprise) and does not have a locking switch.


Q: What is the diameter of the Legendary/Shorty SZCM?

A: The diameter of both versions of the Subzero Competition Mod is 24mm. The top cap tapers to 22mm to accommodate 22mm atomizers.


Q: What size battery does the Subzero Competition Mod use?

A: Both versions of the device utilize a single 18650 battery.


Q: What batteries are good for the Subzero Competition Mod?

A: We always advise using high drain 18650 batteries that do not have damage to the casing or structure of the cell.


Q: My Subzero Competition Mod isn't performing the same anymore. Why?

A: This issue arises when cleaning needs to take place. Try giving it a thorough cleaning. Users report a short bath in an ultra-sonic machine fixed their issue immediately.


Q: Why do you recommend putting my battery in "upside down"?
A: A mechanical mod doesn't know which way the battery is facing. We recommend putting the battery in positive side down because we designed our device to have a better connection that way. Batteries vent through the positive side. Since venting happens in the bottom of the SZ Competition Mod, it only makes sense to place positive side down to allow the device to vent more efficiently in the event of battery failure.


Q: I see the Shorty switch available for purchase. What about the Legendary?

A: Sorry, the Legendary switch isn't available as an accessory. Possibly in the future.




Q: My SZCRDA is leaking. What do I do?

A: Ensure you are not over dripping, have a sufficient amount of wicking material, and replace the o-ring around the deck with the spare included in the box.


Q: Is the 24mm Subzero Competition RDA a hybrid device?

A: It can be! We designed the SZCRDA 24 to be used in a hybrid mode with a Subzero Competition Mod or to be used on any other device with the included 510 adapter.




Q: How do I setup a wholesale account?

A: All you have to do to is create an account on our website. Make sure you check the wholesale box in the account sign-up section and fill in the information requested as accurately as possible. Once this is done, please email so that we can review your information and activate wholesale purchasing on your account.



If your question was not answered in this FAQ: please use the contact form below to send us an email. If you have a question about shipping please review our "Shipping Policy" on the Terms and Conditions page before contacting us. 


Sub Ohm Innovations

3166 Industrial Blvd

West Sacramento, CA 95691