The Model 301D sampling station features a high impact resistant polyethylene enclosure available in two standard colors; medium green and blue as shown above. Other colors are available but minimum quantities may apply. Station security is accomplished through standard pin allen bolt or optional locking hasp. Additional station security is provided by a stainless steel latch lock handle located on the throttling valve which accepts a standard pad lock. The 301D features all brass and stainless steel waterway, stainless steel spigot for flaming, brass throttling valve, 3/4" CTS compression inlet and a totally enclosed PVC housing which protects all operating mechanisms.

The Model 301D features a dry barrel design. Barrel evacuation is achieved through a 1/4" copper evacuation tube using a hang pump or compressed air. Standard depth bury is 36" with any depth available. The 301D is activated by opening the main valve. Operator may then throttle the water flow using the spigot mounted ball valve. When sampling is complete, operator closes main valve, opens 1/4" evacuation valve and evacuates the station.