Vaillant low loss HDR mixing bottle

Product code: 117792

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Model This Fits

Product Description

Designed for use with cascade systems, the Vaillant WH40 low loss header maintains a suitable flow of water through a boiler for a consistent temperature for multiple heating circuits downstream of the low loss header connection.

Product Features

  • For flow rates of 3500L/Hr with 1 1/4" BSPF connection
  • System pump is required to be suitably sized to provide required system water flow rate
  • Maintains correct flow of water through the boiler