Codes like EKS are sometimes found in electrical engineering or aviation parts catalogs, though "Skully Flow" does not match any known aerodynamic or electronic flow sensor terminology.
Some boutique brands on platforms like Etsy use similar SKU codes (e.g., EKS115 for a "Funny Pug" lunchbox design).
In rare cases, product codes like EKS115 are used in or industrial logistics :