United States Radiator Corporation · United States Radiator Corporation · leaf 143
No. 9. With Key, nickel-plated, per dozen $1.80 … No. 10. Positive and automatic, nickel-plated, per dozen . $3.00 This valve can be used with equal facility as a positive or anautomatic air valve without change or adjustment. It operates veryquickly and will last a lifetime. Fully guaranteed. All above valves threaded for >^-inch iron pipe.…
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