![Flow sensor [Discontinued]](/storage/uploads/items/129/B03o7dMMPJ1vZW921CUniyYEpyyaO35oQLOM6z9X.png)
Product Information
Flow sensor [Discontinued]
Compatible with 5 equipment models
- ZWB28 Bosch Greenstar ZWB28 Wall Boiler
- ZWB28-3A Bosch Greenstar Pro ZWB28-3A Wall Boiler
- ZWB35 Bosch Greenstar ZWB35 Wall Boiler
- ZWB42 Bosch Greenstar ZWB42 Wall Boiler
- ZWB42-3A Bosch Greenstar Pro ZWB42-3A Wall Boiler
Please note: Hydrowest Products Ltd. is a wholesale distributor and sells exclusively to licensed contractors and trade professionals.
Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
Flow sensor (Discontinued) — Part No. 87161157540 is a liquid flow detection component intended for Bosch hydronic and domestic hot-water equipment. It provides a flow-status signal to control electronics to confirm water movement and support safe operation and system interlocks. Product discontinued; no official Bosch North America documentation for part 87161157540 was located, so this description is based on the part name and Bosch Flow system context—consult Bosch parts documentation for approved replacements. (bosch-homecomfort.com)
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