GRAV (formerly known as Grav Labs) is known for their quality and innovation, even in their standard pieces. Their Female to Female adaptor will allow you to change a concentrate piece into a flower piece. Now your 14mm or 19mm direct inject piece can accept the matching male bowl. Pick yours up today.
- Height: 2”
- Fits 14mm male or 19mm female direct inject pieces
- Expands 14mm male to a 19mm female
- Reduces a 19mm male to a 14mm female joint