Boss - Supastor Cylinder Spares

Downloadable PDF Installation and Servicing Manuals can be found below:

Boss Unvented Cylinder – Technical Data

10 items

  • Boss - 11" Immersion Heater Element & Thermostat

    Boss – 11″ Immersion Heater Element & Thermostat

    SKU: BS-39-15
    EXCL. TAX £20.43 INCL. TAX £24.52     Add to cart

  • Boss – 15mm to 22mm Tundish

    SKU: BS-10-9
    EXCL. TAX £5.82 INCL. TAX £6.98     Add to cart
  • Boss - 18 Litre White Potable Water Expansion Vessel

    Boss – 18 Litre White Potable Water Expansion Vessel

    SKU: BS-26-24
    EXCL. TAX £33.18 INCL. TAX £39.82     Add to cart
  • Boss - 24 Litre White Potable Water Expansion Vessel

    Boss – 24 Litre White Potable Water Expansion Vessel

    SKU: BS-26-25
    EXCL. TAX £39.15 INCL. TAX £46.98     Add to cart
  • Boss - 3 Bar Pressure Reducing Limiting Valve

    Boss – 3 Bar Pressure Reducing Limiting Valve

    SKU: BS-9-28
    EXCL. TAX £33.63 INCL. TAX £40.36     Add to cart
  • Boss - 35 Litre Potable Expansion Vessel

    Boss – 35 Litre Potable Expansion Vessel

    SKU: BS-26-13
    EXCL. TAX £86.08 INCL. TAX £103.30     Add to cart
  • Boss - 60 Litre Potable Expansion Vessel

    Boss – 60 Litre Potable Expansion Vessel Alternative

    SKU: BS-24-5
    EXCL. TAX £159.34 INCL. TAX £191.20     Add to cart
  • Boss - 7 Bar 22mm Pressure & Temperature Relief Valve

    Boss – 7 Bar 22mm Pressure & Temperature Relief Valve

    SKU: BS-9-13
    EXCL. TAX £26.10 INCL. TAX £31.32     Add to cart
  • Boss - Limit & Control Thermostat

    Boss – Limit & Control Thermostat

    SKU: BS-38-2
    EXCL. TAX £26.74 INCL. TAX £32.09     Add to cart
  • Honeywell V4043H 1056 - 2 Port Motorised Zone Valve 22mm V4043H1056

    Suitable for Boss – 2 Port Motorised Valve Alternative

    SKU: BS-25-2a
    EXCL. TAX £64.98 INCL. TAX £77.97     Add to cart