Based on this product's specifications, here are some alternatives and similar models
Sealed GEL Lead-Acid Battery NPP NPG12-40Ah 12V 40Ah for Backup and Solar Systems
Summary description:
12V 40Ah sealed GEL lead-acid battery NPP NPG12-40Ah designed for backup power, UPS, telecommunication equipment and small off-grid solar installations. Maintenance-free, valve-regulated construction with gel electrolyte reduces leakage and allows varied mounting positions. Provides stable DC power for long standby periods and cyclic use in compact systems.