This adapter replace the original stock banjo bolt on Honda Fuel Filter and allows you to run a fuel pressure gauge to monitor and assist you in setting up base fuel pressure at idle.

Precision Machined and Zinc plated for precise fit and extra protection against heat and corrosive fluid material.  Can also be use to install temperature sensor as well.

The NPT port is 1/8" NPT Female.

This will fit other makes and model that use 12x1.25mm pitch thread