GRAV® 19mm Female to 14mm Female Reduction Adapter
The GRAV® 19mm Female to 14mm Female Reduction Adapter is a borosilicate glass adapter that converts a 19mm male joint into a 14mm female joint, letting you use 14mm bowls, bangers, and accessories on a rig or bong built around a 19mm connection.
Best for: 19mm rig or bong owners who want to use 14mm accessories
Key Features & Benefits
1Joint size conversion — bridges the gap between a 19mm male joint and 14mm female accessories without needing to replace the piece itself.
2Borosilicate glass construction — matches the thermal durability of the rest of your setup.
3Precision fit — machined for a secure, air-tight seal on both ends.
Product Specifications
| Specification | Details |
|---|---|
| Brand | GRAV |
| Converts From | 19mm male joint |
| Converts To | 14mm female joint |
| Material | Borosilicate glass |
| Color | Clear |
Why Choose This Adapter
A low-cost adapter is far cheaper than replacing a whole rig or bong just because it has a 19mm joint instead of 14mm. Glass also matches the thermal expansion of the rest of your setup and won't off-gas or affect flavor the way some plastics can near heat, and since the 14mm accessory market is larger, this adapter opens up more bowl and banger options for a 19mm piece.
Ideal For
Owners of a 19mm rig or bong who want access to the wider selection of 14mm bowls and bangers without buying a new piece.
Care & Maintenance
Clean along with the rest of your setup — soak in isopropyl alcohol with coarse salt, rinse thoroughly with warm water, and let it dry fully. Handle both joint ends carefully, since the ground-glass surfaces are what create the seal and can chip if knocked against a hard surface.
Frequently Asked Questions
What does this adapter do?
It converts a 19mm male joint into a 14mm female joint, letting you attach 14mm bowls, bangers, or other accessories to a rig or bong that was built with a 19mm connection.
Will it fit any 19mm piece?
It fits any piece with a standard 19mm male joint opening.
Is it made of glass?
Yes, borosilicate glass, matching the durability of standard rig and bong glass.
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