Slingshot SUP High Pressure Inflator Valve High Pressure Adaptor for quick inflation Compatible on most SUP brands and inflatable products Achieve ideal PSI with less work Connects to any high pressure shreader inflator The Slingshot High Pressure SUP Inflator Valve fits with the Halkey Roberts Valve. The best way to determine if the Slingshot inflator valve works with your inflatable craft is to check the valve and look to see if there are 8 square continuous key holders. The Slingshot HP SUP Inflator Valve is com