Product Information
Return unit USA
Compatible with 5 equipment models
- ZBR16 Bosch Greenstar ZBR16 Wall Boiler
- ZBR21 Bosch Greenstar ZBR21 Wall Boiler
- ZBR28 Bosch Greenstar ZBR28 Wall Boiler
- ZBR35 Bosch Greenstar ZBR35 Wall Boiler
- ZBR42 Bosch Greenstar ZBR42 Wall Boiler
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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.
The Bosch Return Unit (USA) is a replacement return-air module for Bosch residential and light‑commercial HVAC systems, engineered to provide a compact, serviceable interface for routing return airflow and accommodating filtration and control connections. Suited for installers and service dealers, it simplifies retrofit and maintenance by aligning with Bosch mounting and connection conventions to minimize field modifications. Exact part number 87182261820 was not located on Bosch North America product pages; this description is based on the product name and category.
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