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Parts You Can Trust

All parts are brand new with a 12-month warranty. No used or refurbished items—just reliable quality.
💬  WhatsApp (Messages only): +44 7485 931003

Real-Time Stock

Use the search box above 🔍 to find items by brand or manufacturer part number. Stock levels are live—what you see is what’s available. GC numbers are not searchable.

DELIVERIES 
DPD aims to deliver your order the next day, but Next-Day Delivery is not guaranteed. As stated in DPD’s terms and conditions, shipping costs are non-refundable, even in the event of delays.
Home  /  Heating & Boiler Parts  /  Flow Switches Micro Switches

Flow Switches Micro Switches

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FS.050 VAILLANT TURBOMAX PLUS 824 824/2 828 828/2 827 E AQUA SENSOR 194819 194830
FS.050 VAILLANT TURBOMAX PLUS 824 824/2 828 828/2 827 E AQUA SENSOR 194819 194830
£52.66
£63.19 (inc. VAT)
FS.100 VAILLANT ECOTEC FLOW SENSOR 178988 0020014174 Glowworm 2000801910 801910
FS.100 VAILLANT ECOTEC FLOW SENSOR 178988 0020014174 Glowworm 2000801910 801910
£22.21
£26.65 (inc. VAT)
FS.105 VAILLANT TURBOMAX VUW GB 242 282/1E FLOW SWITCH 151041
FS.105 VAILLANT TURBOMAX VUW GB 242 282/1E FLOW SWITCH 151041
£30.00
£36.00 (inc. VAT)
FS.108 VAILLANT AQUAPLUS VUI 362-7 AQUA SENSOR IMPELLER 0020029604 194829 194819
FS.108 VAILLANT AQUAPLUS VUI 362-7 AQUA SENSOR IMPELLER 0020029604 194829 194819
£12.00
£14.40 (inc. VAT)
FS.110 Honeywell C7195A 1011
FS.110 Honeywell C7195A 1011
£26.14
£31.37 (inc. VAT)
FS.200 Alpha C23 C27 CD 25 28 Extra 35C DHW FLOW SWITCH 1.020831 1.015142
FS.200 Alpha C23 C27 CD 25 28 Extra 35C DHW FLOW SWITCH 1.020831 1.015142
£7.14
£8.57 (inc. VAT)
FS.210 Ferroli Halstead CBX 24 32 300733 was 300766 39804220
FS.210 Ferroli Halstead CBX 24 32 300733 was 300766 39804220
£12.50
£15.00 (inc. VAT)
FS.215 Ferroli Optimax HE 31C 38C Optimax HE Plus 39820450
FS.215 Ferroli Optimax HE 31C 38C Optimax HE Plus 39820450
£23.94
£28.73 (inc. VAT)
FS.220 Ferroli Paddle Flow Switch 39800120 800120
FS.220 Ferroli Paddle Flow Switch 39800120 800120
£17.59
£21.11 (inc. VAT)
FS.230 Ferroli Angled Flow Meter 39805910 805910
FS.230 Ferroli Angled Flow Meter 39805910 805910
£30.00
£36.00 (inc. VAT)
FS.231 Ferroli Angled Flow Meter 39805910 805910
FS.231 Ferroli Angled Flow Meter 39805910 805910
£15.75
£18.90 (inc. VAT)
FS.250 Ferroli Flow Meter 39846880 39836700 3640234/1 Compatible
FS.250 Ferroli Flow Meter 39846880 39836700 3640234/1 Compatible
£15.75
£18.90 (inc. VAT)
FS.310 Radiant 96007
FS.310 Radiant 96007
£29.29
£35.15 (inc. VAT)
FS.410 Potterton Puma 8929673 929673 10/18676 451100
FS.410 Potterton Puma 8929673 929673 10/18676 451100
£15.70
£18.84 (inc. VAT)
FS.420 Potterton Puma Flow Switch 21/18677 451110 929675
FS.420 Potterton Puma Flow Switch 21/18677 451110 929675
£4.09
£4.91 (inc. VAT)
FS.430 Ravenheat Microswitch 0012MIC09010/0
FS.430 Ravenheat Microswitch 0012MIC09010/0
£10.00
£12.00 (inc. VAT)
FS.432 Alpha CB24 CB28 Microswitch 3.013211
FS.432 Alpha CB24 CB28 Microswitch 3.013211
£7.87
£9.44 (inc. VAT)
FS.435 Biasi Halstead Ideal Microswitch BI1011505 500593 075419
FS.435 Biasi Halstead Ideal Microswitch BI1011505 500593 075419
£5.65
£6.78 (inc. VAT)
FS.440 Baxi Microswitch 5650200 248067
FS.440 Baxi Microswitch 5650200 248067
£6.77
£8.12 (inc. VAT)
FS.445 Baxi Potterton Microswitch 248067 6.5625770
FS.445 Baxi Potterton Microswitch 248067 6.5625770
£3.50
£4.20 (inc. VAT)
FS.450 Biasi Windsor BI1271101 Keston ks301175590 Ideal 175590 ARISTON 65100540
FS.450 Biasi Windsor BI1271101 Keston ks301175590 Ideal 175590 ARISTON 65100540
£10.76
£12.91 (inc. VAT)
FS.460 Biasi Garda Magnetic flow switch & filter BI1271501 Remeha 720533201 S100203 720545001 S62781
FS.460 Biasi Garda Magnetic flow switch & filter BI1271501 Remeha 720533201 S100203 720545001 S62781
£19.58
£23.50 (inc. VAT)
FS.465 Biasi Magnetic Flowswitch and Filter Kit BI1091502 ARISTON 998941
FS.465 Biasi Magnetic Flowswitch and Filter Kit BI1091502 ARISTON 998941
£33.81
£40.57 (inc. VAT)
FS.470 Ideal 172503 / Biasi BI1091104 / Halstead 500641 999075
FS.470 Ideal 172503 / Biasi BI1091104 / Halstead 500641 999075
£10.03
£12.04 (inc. VAT)
FS.480 Ideal 175661 Flow Turbine Cartridge HE30 Fugas Pn 10393
FS.480 Ideal 175661 Flow Turbine Cartridge HE30 Fugas Pn 10393
£21.68
£26.02 (inc. VAT)
FS.500 BIASI ACTIV A PLUS ADVANCE PLUS INOVIA RIVA PLUS HE D.H.W FLOW SWITCH BI1441104
FS.500 BIASI ACTIV A PLUS ADVANCE PLUS INOVIA RIVA PLUS HE D.H.W FLOW SWITCH BI1441104
£8.00
£9.60 (inc. VAT)
FSC.450 Biasi Windsor BI1271101 Keston ks301175590 Ideal 175590 ARISTON 65100540
FSC.450 Biasi Windsor BI1271101 Keston ks301175590 Ideal 175590 ARISTON 65100540
£6.46
£7.75 (inc. VAT)
FSC.460 Biasi Magnetic flow switch filter BI1271501 Remeha 720533201 S100203 720545001 S62781 175660
FSC.460 Biasi Magnetic flow switch filter BI1271501 Remeha 720533201 S100203 720545001 S62781 175660
£8.90
£10.68 (inc. VAT)