Product Overview
This knob set is made to fit the Harbor Freight A/C Gauge set and many more. They come in a set of (1) Red and (1) Blue. The knobs are designed and 3D printed here at our facility.
You can purchase a set here or if you want to download the files and print them yourself, you can download the digital files here: https://v3precision.com/a-c-gauge-knobs-set/
Be sure to check the inside diameter of the knobs to verify proper fit.
The shades of Red and shades of Blue might vary depending on the filament used.