Part Number: 1667 MIL1667. INFLATOR: Heavy-duty construction. Magnifying window lens. Full-swivel chuck. We have warehouses in multiple states. We will provide you with that information. Milton (S-506) Original Dual Head Chuck Tire Inflator Gauge - 15" HoseMilton Industries specializes in tire inflator gauges and this original S-506 dual chuck inflator gauge was the first gauge of its kind ever built in the industry.