Thursday, July 18, 2013

Bosch ProTankless 425PN Heat Exchanger

The Bosch ProTankless 425PN Heat Exchanger Part 8705406386 (87054063860, 8-705-406-386-0) is the current replacement heat exchanger for allBosch ProTankless 425PN tankless water heaters.


Please note that the original heat exhanger for all Bosch ProTankless 425PN tankless water heaters was 8705406275 (87054062750, 8-705-406-275-0). This part is now obsolete and has been replaced by the 8705406386 heat exchanger.

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