【Efficient Powerful Inflation】With a built-in dual-stage air pump, our SUP pump is up to 20 PSI, faster than other pumps! Due to its powerful performance, it inflates a 10.5FT SUP to 15PSI in just 𝟳𝗠𝗶𝗻𝘀! In the first stage, the flow rate is 400L/min,...