Based on this product's specifications, here are some alternatives and similar models
Sealed lead-acid battery FIAMM FUKAWA FW 9-12 HRU 12V 9Ah – 12 V, 9 Ah
Summary description:
Sealed lead‑acid FIAMM FUKAWA FW 9-12 HRU 12V 9Ah battery designed for standby and cyclic applications requiring a compact 12 V power source. Provides 9 Ah nominal capacity for UPS, alarm systems, emergency lighting and small electric devices. Maintenance‑free, valve‑regulated construction for safe indoor use and reliable backup power.