Keep your warranty intact by buying genuine manufacturers spares only through McDonald Water Storage.
Please note that all prices on our online store include VAT and free shipping (for orders over £50) to a mainland UK address, unless otherwise stated. Any additional shipping costs will be shown at the checkout stage of your order process.
- "Lid Vent" is a required field.
- "Inlet Valve" is a required field.
- "Screened Overflow" is a required field.
- "Warning Pipe" is a required field.
- "Tank Outlet" is a required field.
- "Drain Valve" is a required field.
- "Encapsulated Ply Baseboard" is a required field.
- "Lid Mounted Level Switch" is a required field.
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Control Stat for 14″ 3kW I.H.
£32.55 Excl. VAT Part No: WEIHTAdd to basket -
100mm Dial Temp. Gauge, Back Entry (0 – 120°C)
£55.48 Excl. VAT Part No: WCTGSAdd to basket -
15mm Pressure and Temperature Relief Valve (7.0Bar)
£60.02 Excl. VAT Part No: WUVTP7Add to basket -
1/2″ x 15mm Expansion Relief Valve (5.0Bar)
£53.21 Excl. VAT Part No: WUVER5Add to basket -
24″ 12kW Immersion Heater
£391.40 Excl. VAT Part No: WIH12WRAdd to basket -
Thermostatic Mixing Valve 22mm (35°C to 70°C)
£147.00 Excl. VAT Part No: WESTMVAdd to basket -
ELECTRAflow Controller Timer PCB
£173.25 Excl. VAT Part No: WECPCB2Add to basket -
Immersion Heater Boss Blanking Plug
£21.00 Excl. VAT Part No: WBP7Add to basket -
12 x 4 x 6″ Copper Back Boiler
£337.64 Excl. VAT Part No: C50Add to basket -
Plate Heat Exchanger and Jacket (CBH18-29H)
£305.84 Excl. VAT Part No: WTPHEAdd to basket -
22mm Check Valve
£46.40 Excl. VAT Part No: WUVCAdd to basket -
18″ 3kW Immersion Heater
£52.50 Excl. VAT Part No: WIH18Add to basket -
Thermostatic Mixing Valve 28mm
£165.59 Excl. VAT Part No: WTTMV28Add to basket -
Thermal Store Flow Switch
£141.75 Excl. VAT Part No: WTPHEFSAdd to basket -
1″ Secondary Return Blanking Plug
£18.38 Excl. VAT Part No: WBP3Add to basket -
22mm Pressure Reducing Valve (1.5Bar)
£90.67 Excl. VAT Part No: WUVPRCAdd to basket -
12 x 6 x 6″ Copper Back Boiler
£379.09 Excl. VAT Part No: C51Add to basket -
ELECTRAflow Controller
£0.00 Part No: WECRead more -
Byelaw 30 Kit
£45.85 Excl. VAT Part No: WPB30Add to basket -
100mm Dial Pressure Gauge (0-7B)
£42.24 Excl. VAT Part No: WCPGAdd to basket