Get the convenience of an inflate-through extension combined with the dependable seal of a high-pressure valve cap. Designed for high-pressure truck service, this dual-seal valve cap lets you inflate directly through the cap and helps reduce pressure check time by as much as 65%. And no more last valve caps. Heat-resistant grommets provide additional protection for extended high-temperature running.• Overall length 7/8".• Temp. rated seal: -40° to 250°F Green Dual Seal Valve Cap, PK50