Privacy, Shipping, & Warranty

Privacy Policy


We do not sell or give your information to anyone, except as necessary to execute functions such as analytics,  security, billing, and shipping.
We may utilize your email in order to deliver discounts, rewards, and necessary communication.
We do not operate any form of newsletter that spams your email. Discounts may be found on socials and by checking the site.

3rd Parties

The following are examples of 3rd parties that may have access to your information:

  • Cloudflare - Security
  • Reflow - Checkout flow
  • PayPal/Stripe - Payment processing
  • Google - Analytics


Free Shipping

Free shipping is available to all of the United States (yes this includes Alaska, Hawaii, PR, VI, and Guam).

International Shipping & Carriers

We currently utilize UPS and USPS as carriers. We typically apply a $10 credit towards shipping any international orders. International orders must make an invoice request. 4D Filtration is not responsible for any taxes, charges, or fines levied by the designation country towards an international shipment.

Warranty & Returns


All components carry a 180 day limited warranty against manufacturing defects. Activated carbon and filters are not eligible for returns or refunds.
Many components are created using additive manufacturing and may contain cosmetic imperfections.


Components shall have been subject to only normal use and shall not have been misused, neglected, altered, improperly set up or otherwise damaged & there shall be no evidence of tampering or deliberate misuse or destruction. The warranty is non-transferable - any warranty claims must be made by the original purchaser and include proof of purchase.
Defects to components will be determined solely by 4D Filtration. Upon determination of a defect, 4D Filtration at it's sole discretion will choose to repair the component, replace the defective component with the same or similar product, or issue a refund amount.
4D Filtration must authorize the return of any alleged or defective part before it is returned.


The party making the claim must pay all shipping costs. 4D Filtration will not accept liability for parts purchased unless the conditions of the warranty have been satisfied.


Monetary refunds are available only before your items have shipped - just send us an email. If your items have already shipped then you will need to return the items. Refunds are processed on your original payment method. The refund amount consists of your original payment amount minus processing fees from PayPal or Stripe (for example, PayPal charges ~3.5% + 50 cents for USD).