Milton (S-505) Single Head Air Chuck Tire Inflator Gauge - 15" Hose ACCURATE: Performance-tested and calibrated. Measures in pounds per square inch (PSI, 10-60, 2-lb. increments). Kilopascal readings also available per special order (kPa, 80-840, increments of 20). SINGLE HEAD CHUCK: Ideal for motorcycles and other hard-to-reach tire valves. INFLATOR: Heavy-duty construction. Magnifying window lens. Full-swivel chuck. 15-inch hose. 3/8-24 threads. REPLACEABLE PARTS: Gauge and valve cartridges can both be replaced. (Milton #507 and #512 for all 500 Series Milton window inflator gauges). OTHER #505 PARTS: Replacement hose whip/length = Milton #508; Replacement air chuck = Milton #P500-44; Air chuck threads = 7/16"-27 UNS.