Review on Enhanced Performance Double Action Pump with Integrated Pressure Gauge by Mike Bogan

I bought an open box/return to customer REI Advanced Elements AdvancedFrame AE1012 kayak but it was missing the pump and spring valve adapter. REI stated that the customer returned it because they couldn't figure out how to inflate it. Needless to say, after doing my research I found a manufacturer branded pump hoping it would have an adapter. need it. I also include photos of the inflation and deflation side and the pressure gauge. Hope this all helps!