Based on this product's specifications, here are some alternatives and similar models
Gel battery BLOW Gel Battery 12V 17Ah XTREME 82-212# – 12 V, 17 Ah, valve-regulated gel
Summary description:
Sealed gel battery BLOW Gel Battery 12V 17Ah XTREME 82-212# provides 12 V nominal voltage and 17 Ah capacity in a maintenance-free, valve-regulated gel design. Suitable for UPS systems, backup power, alarm systems and other low-voltage stationary applications. Offers deep-cycle tolerance and reduced maintenance thanks to gel electrolyte and sealed construction.