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Siemens HB529 Zone Pack with Programmer - 22mm

Product code: 228521
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Siemens HB529 is a 22mm unvented 2 zone developer control pack.
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Next day delivery - from FREE
Product details
  • Type: Control Packs
  • Brand Name: Siemens
Features & benefits
  • Includes 2 x CMV322, 22mm 3 port mid-position motorised valve
  • Includes a BPV22, 22mm Automatic Bypass Valve
  • Includes a RAA20-GB Room Thermostat for combi boilers
  • Includes a RAM1 cylinder thermostat
  • Includes a RWB29 7 day programmer
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