This high pressure adapter allows you to get the most out of inflatable SUPs. This adapter allows you to use a compressor to inflate the SUP to the desired PSI effortlessly. An inflatable SUP performs significantly better if inflated to the recommended PSI so you can make sure you get the most out of your SUP. The Slingshot High universal high pressure inflation adapter fits the 'Halkey Roberts' valve. The best way to determine if the Slingshot inflation adapter works with your inflatable SUP is to check with a professional. The HP SUP Slingshot Inflatable Valve is compatible with most major brands.