The Model 25 was a "ECO Automatic Tire Inflator (wall type). Designed for wall instillation. Equipped with a ECO automatic tire inflator, bell signal, air cleaner, and hook operated cut off valve. Has indirectly illuminated dial and 25 feet of ECO red air hose. Back cover is hinged, so that case may be readily opened for mounting, inspection or adjustment.
Hose hook projects 12 inches from wall. Shipping weight is 60 pounds."
Need any information on an Air Meter let me know? Also I have a repair manual for this model. http://petrolianacollectibles.com/eco-19%20parts.htm
Note: Priced right, the last two that I had I sold for $3000 each.