Product Information
Seal Ø 87,5mm
Compatible with 10 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
- 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.
Seal Ø 87.5 mm (Bosch ordering no. 8 722 933 330 0) is listed as a spare part for GC8300iW 25/35 domestic gas boiler models, providing a precision-fit gasket for burner and heat-exchanger assemblies. Supplied as an OEM replacement on Bosch parts lists, this circular seal restores correct component sealing to preserve combustion- and flue-gas integrity during service or repair, making it suitable for B2B service departments and wholesalers stocking GC8300iW parts. (bosch-homecomfort.com)
Related Products
Gasket 22,2x30x2
O-ring
O-ring burner flange (outer ring)
Seal (Service cover) WB5-II+
Greenstar Electrode Kit
O-ring 1.23 x 0.14 NBR
Burner sealing
O-ring 13,87x3,53
Lip seal 29,8 x 6,1
Washer
Sealing mounting plate
