These GL Caps screw onto threaded joints.
The aperture (opening) allows various attachments to fit in-between the cap and the threaded joint.
We sell both GL-14 and GL-18 sized fittings.
Explore Products
Superior extraction
We utilize our design, engineering, compliance and manufacturing expertise to ensure that all of our extraction equipment is reliable, high-quality, and refined. Precision was founded on quality, built on service, and measured on results.