Based on this product's specifications, here are some alternatives and similar models
Sealed lead-acid UPS battery EUROCASE NP7-12 12V 7Ah (RBC2)
Summary description:
EUROCASE NP7-12 is a sealed lead-acid replacement battery for UPS and backup systems with a nominal voltage of 12V and capacity of 7Ah. Designed as an RBC2-compatible module, it provides reliable short-term power support for small UPS units, alarm systems, and emergency lighting. Maintenance-free, spill-proof construction simplifies installation and operation.