Based on this product's specifications, here are some alternatives and similar models
Hand Pump Master MAS-B850 for Inflatable SUP Boards — Master branded manual pump
Summary description:
Manual hand pump Master MAS-B850 designed for inflating inflatable SUP (stand-up paddle) boards. This pump provides a portable solution for quickly filling SUP boards with air using manual operation. Suitable for onshore and travel use, it serves as a basic inflation tool for paddlers who need a compact, easy-to-carry pump for beach, lake or river outings.