Based on this product's specifications, here are some alternatives and similar models
Expansion vessel OTTONE OT090105 – closed hydronic expansion tank for heating systems, model OT090105
Summary description:
OTTONE OT090105 expansion vessel is a closed hydronic expansion tank designed for heating and hot-water systems. The membrane-type vessel absorbs pressure fluctuations and protects piping and components from overpressure. Suitable for installation on sealed central heating circuits to stabilize system pressure and compensate for thermal volume changes.