Threaded fittig 1/4 - Tube 3/8 inch + large O-ring

FITTING 1/4 INCH + LARGE O-RING - 3/8 INCH TUBE

3/8 inch with large O-ring for uneven surfaces.

This type of connector allows to have the most airtight connection can that has a non-smooth surface.

The O-ring of this fitting is thicker than the traditional, to fill the uneven roughness of the edge of the borehole by 1/4 inch.
On the other hand, the flexible tube 3/8 inch connects directly to power a water filter system or compressed air.

Made with FDA food acetal American and NSF.