Description

Tractor air valve control knob is thread on style – universal fit for all trucks. Stainless plaque and colored jewel. Available in amber, clear, green, or purple

Brand: United Pacific Industries

Sold by Virgo Fleet Supplies, Brooklyn NY. Ships nationwide. Call 800-270-6003 or order at virgofleet.com.
Source: https://virgofleet.com/product/united-pacific-tractor-air-valve-control-knob-2/