Opaque Quartz Gear Insert, 18mm


(1 customer review)

Opaque gear inserts are great for added heat retention and even heat distribution. Place in your quartz banger and dab as usual. This is a great insert for those who like big dabs and benefit from increased surface area and heat retention. For use with 25mm quartz bangers, the internal diameter must be a minimum of 20mm. 


  • Diameter: 18mm OD
  • Height: 12mm

95 in stock

Use up to 540 TerpTokens to purchase this product!


Do you ever get tired of your quartz banger getting cold mid-hit? We do and that’s why quartz inserts are one of our favorite accessories. We love these inserts due to their insane heat retention which evenly vaporizes your concentrates and reduces the number of times you will need to heat up your banger.


  • Mind-blowing heat retention abilities for longer draws and even vaporization
  • Extended heat retention with even heat distribution and extended vaporization
  • Easy low-temperature dabs to protect your terps and lungs
  • Reduces waste by fully vaporizing your materials, saving you money
  • Guaranteed to not devitrify (foggy/chazzed appearance)


Clean after each use by wiping down with a cotton swab or soaking in isopropyl alcohol (or other cleaners).

WARNING: Do not submerge a hot insert into a cold solvent (eg. isopropyl alcohol) as the quartz can crack due to thermal shock—although unlikely, you have been warned. Wait for the insert cool several minutes before submerging or clean with a dry cotton swab. We are not responsible for items damaged due to not following cleaning procedures.


Free shipping on all US orders. Orders will be shipped within 1-2 business days in discrete packaging. You will receive a shipment confirmation email with your tracking number(s) once your order has shipped. If you need to cancel/adjust your order, change your shipping information, or have other requests, please contact us via phone at (831) 200 – 3549 or email us at support@terporium.com immediately as orders are processed quickly.

All orders within the United States are shipped via USPS First Class or Priority Mail (depending on the size of your order). International orders are shipped via UPS. At our discretion, orders may require a signature confirmation.


If you are not satisfied with the Terporium product you purchased, we can refund the product’s purchase price if it is returned within 30 days of its arrival at the shipping address. You will be responsible for return shipping. You are only eligible for a return if your item is unused and in the same condition that you received it. At the sole discretion of Terporium, you may receive a partial refund on used or slightly damaged products. All 2nd quality quartz are final sale items, meaning they are not eligible for returns unless damaged in shipment to you, defective, or incorrect. You must return your item in the original packaging (if applicable).

If your shipment is damaged, missing, incorrect, etc., promptly email support@terporium.com for return/refund/exchange instructions. Please include your order number and a photo (if applicable).

To return your item, please include your order number inside the box and a brief description (i.e., refund or exchange for ____ size/color). Please ship products eligible for return to the following address: PO Box 305, Aptos CA 95001.

1 review for Opaque Quartz Gear Insert, 18mm

  1. FLUFFHEDD (verified owner)

    Insane heat retention

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