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Bosch Therm External Water Filter (8703305356)
The Bosch External Water Filter (8703305356) replaces the internal water filter that comes with the heater. Having the water filter external means it is located under the Bosch Therm tankless water heater and is therefore easy to access and clean out. Odds are that if you do not install the external water filter then the internal water filter will not get regularly cleaned out as you would have to open the cover and remove the control board to get to the internal water filter, which is not very convenient.
The Bosch Therm External Water Filter is designed to work with the following Bosch Therm Tankless Water Heaters: C 1210 ESC, GWH C 920 ESC, C 1210 ES, GWH C 920 ES, C 1050 ES, GWH C 800 ES, C 950 ES, 940ES, 940ESO, GWH 715 ES, and 830ES.
This accessory is not included with these heaters and is highly recommended.
The Bosch External Water Filter is not designed to work with the new Bosch Greentherm C 1050 ES or the C 950 ES tankless water heaters as these heaters come equipped with externally accessible water filters.
The Bosch External Water Filter is included with the Bosch Integra 500 and Bosch Evolution 500 water heaters. -
Brand Bosch Therm Model Bosch Therm External Water Filter (8703305356) Manufacturer's Part Number (MPN) 8703305356 Alternate MPNs 8-703-305-356 Application Commercial,Residential Indoor/Outdoor Installation Indoor Material of Construction Brass Product Dimensions (H" x W" x D") 38 x 8 x 8 Product Weight (Lbs) 2 Shipping Weight (Lbs) 10.0000 Product Type Gas Heater Accessory -
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Warranty
Bosch gas tankless water heaters, electric tankless water heaters, electric mini-tank water heaters and accessories are warranted directly by the Manufacturer (BOSCH) through Bosch Thermotechnology Corp.
Please visit the Bosch-Climate.us web site Warranty Page for the full details of the Bosch product warranty.
Be sure to fill out your Warranty Card and send it to Bosch immediately after your installation to ensure you are registered for the full product warranty. -
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