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Glass Adapter Grommets – 10mm, 14mm & 18mm Size Conversions | Universal Bong & Rig Fittings

Glass Adapter Grommets – 10mm, 14mm & 18mm Size Conversions | Universal Bong & Rig Fittings

$6.00 CAD
$6.00 CAD
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Shipping calculated at checkout.
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Ships from Canada
Discreet packaging
Free shipping $100+
Secure checkout

Product details

Upgrade, repair, or customize your setup with these premium glass adapter grommets, designed to convert between popular joint sizes for bongs, dab rigs, bowls, and accessories. Whether you need to size up, size down, or fit mismatched joints, these adapters provide a seamless, airtight connection.

Made from durable borosilicate glass with frosted joints for a secure grip, they are essential tools for any smoker or dabber looking to expand compatibility across multiple pieces.

Available Adapter Options

  1. 10mm Male → 14mm Female Grommet
    Allows 10mm rigs to use 14mm bowls, nails, or bangers.

  2. 14mm Male → 18mm Female Grommet
    Perfect for upgrading to larger 18mm accessories.

  3. 14mm Female → 18mm Male Grommet
    Adapts smaller joints to fit 18mm female bongs or downstems.

  4. 18mm Female → 14mm Male Grommet
    Reduces 18mm joints so you can use 14mm bowls or quartz bangers.

Key Features

  • High-Quality Borosilicate Glass
    Heat-resistant, durable, and designed for long-term use.

  • Frosted Ground Joints
    Creates a tight, reliable seal with no wobble.

  • Universal Fit
    Works with most standard glass bongs, dab rigs, bowls, downstems, and quartz bangers.

  • Easy Size Conversion
    Instantly expand compatibility across all your glass pieces.

  • Compact & Simple to Use
    Swap in seconds—no tools required.

Specifications

  • Material: Borosilicate glass

  • Joint Options:

    • 10mm Male → 14mm Female

    • 14mm Male → 18mm Female

    • 14mm Female → 18mm Male

    • 18mm Female → 14mm Male

  • Style: Frosted joint adapters

Specifications
Joint size
10mm Male
Material
Glass

Shipping & discreet packaging

Orders are processed within 1–24 business hours. Free shipping is available on orders over $100 CAD. Every order is packed in plain, unbranded packaging.

Damaged-item policy

If an item arrives damaged, contact us within 48 hours of delivery with clear photos of the item and packaging. Please do not use the item or fill it with water before contacting us.

Payment options

Major cards, Sezzle, and Interac e-Transfer are available where shown at checkout. Orders paid by direct deposit or Sezzle are non-refundable.

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FAQ

How long does shipping take?

Orders are processed within 1–24 hours on business days. Delivery typically takes 3–5 business days within Ontario, and may take longer depending on your location across Canada.

Do you offer free shipping?

Yes — we offer free shipping on orders over $100 CAD anywhere in Canada.

Are orders shipped discreetly?

Yes. All orders are shipped in plain, unbranded packaging with no indication of the contents.

Will I receive tracking information?

Yes. Once your order ships, you’ll receive a tracking number by email. You can also log in at bestbongz.ca to check your order status. Please allow up to 72 hours for tracking to update.

What if my item arrives damaged?

If your item arrives damaged, contact us within 48 hours of delivery with clear photos of the item and packaging. We’ll review the issue and provide a solution. Please do not use the item or fill it with water before contacting us.