COMPONENTS OF THIS ASD

1) One unit completely made from 304 Stainless steel- described in more detail below.
 

DESCRIPTION OF THE MAIN UNIT
DIESEL Keeper ASD B Series 2 Anti-Siphon Device that fits on the diesel tank inlet of most Heavy Duty Class 8 International and MACK trucks where the tank inlet has a 4" opening.

The top grid has a honeycomb shape inside the fill neck, and the bottom grid has a similarly designed honeycomb shape with lines running through it in one direction. The top flange around the filler neck extension has fourteen trapezium openings and three round holes to allow for air to escape as the tank is filled.

At the bottom of the device there are ten flow slots to assist in fast fueling (up to 31 gallons per minute / 120 liters per minute). The outer sleeve comes almost all the way down and has two rectangular cut-outs that allow access to the four "one-way arms" that need to be manually pulled out to about 30 degrees prior to installation.

The Device comes with a built in filler neck extension. The device is about 5.6" tall when in its normal position and 6.6" when the filler neck extension is in the upper resting position.

The Device is designed to fit into the diesel tank with the top being just about flush with the diesel tanks steel lip that can be found underneath the diesel cap. One can continue to use the machines existing diesel cap. Any diesel screen below the diesel cap would need to be removed to allow for fitting and installation of the unit.