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If you hate waiting to air down before hitting the sand but you think you have no other choice given your large tires and multiple high pressure tires on your toy hauler think again. The 20lb. Track Pack Package C with its set of our popular Monster Valves will save you as much as 20 minutes over airing down the "old way". Oh, and you thought inflating those big dawgs was fast through your standard valve stems? Imagine doubling the inflation speed through your Monster Valves. Shaaawing.