One way valve

I could not locate an official Bosch listing on bosch-homecomfort.com or bosch-climate.com for part number 8733941823; the description below is based on the product category “one‑way valve.” (bosch-homecomfort.com) A Bosch one‑way (check) valve prevents reverse flow in hydronic and HVAC circuits, protecting pumps, heat exchangers and control valves while maintaining hydraulic balance and system integrity. Ideal for service and spare‑parts inventory, it serves as a straightforward replacement component for technicians performing maintenance or repairs on Bosch‑compatible heating and cooling systems.