| GLOWWORM LED GLOBE IN/OUTDOOR STRING LIGHTS - WARM WHITE | straight2you.co.uk | 1.49 GBP | 5.99 GBP | −75.1% |
| Glow-Worm Energy 30C Erp Combi Boiler & Flue | spares-direct.com | 1348 GBP | — | — |
| Glow-Worm Energy 25C Erp Combi Boiler & Flue | spares-direct.com | 1178 GBP | — | — |
| Glow-Worm Easicom 24KW Combi Boiler & Flue | spares-direct.com | 848 GBP | — | — |
| Glow-worm Gas Valve G20 — Part No. S1071400 (Honeywell VK8525) | spares-direct.com | 233 GBP | — | — |
| Glow-worm Fan Assembly — Part No. S227034 (Micron 50FF/60FF | Sifan FFB1701-031) | spares-direct.com | 232 GBP | — | — |
| Glow-worm Gas Valve Assembly — Part No. 2000800158 (SIT 825 NOVA) | spares-direct.com | 212 GBP | — | — |
| Glow-worm / Honeywell Gas Valve — Part No. V4600C1086 (1/2" 240V, Grey Push-Button) | spares-direct.com | 170 GBP | — | — |
| GlowWorm 0020097280 Gas Valve Section for GlowWorm Ultracom2 12SXI Boilers - NEW | swift-spares.co.uk | 149.99 GBP | — | — |
| Glowworm S227034 Micron 50FF, 60FF Fan 227034 Sifan WFFB1701-031 - GENUINE NEW | swift-spares.co.uk | 124.99 GBP | — | — |
| GLOWWORM MICRON 60FF 70FF 80FF PRINTED CIRCUIT BOARD PCB 2000801991 WAS S227031 | nationalboilerspares.co.uk | 120.99 GBP | — | — |
| Glow-worm DHW Plate Heat Exchanger – 0020136540 (Betacom & Easicom) | spares-direct.com | 111 GBP | — | — |
| Glowworm / Saunier Duval S1024800 domestic heat exchanger | spares-direct.com | 106 GBP | — | — |
| Glowworm 2000801020 Ultimate/Economy SIT 830 Tandem 0830010 Gas Valve E25-264 | swift-spares.co.uk | 99.99 GBP | — | — |
| POTTERTON BOILER PLATE HEAT EXCHANGER (12 PLATES) 5138647 | nationalboilerspares.co.uk | 84.99 GBP | — | — |
| Glow-worm Standard Horizontal Flue Kit 60/100mm – 0010031041 | spares-direct.com | 79.99 GBP | — | — |
| Glowworm Ultimate/Betacom/Easicom PCB 0020118138 | nationalboilerspares.co.uk | 66.6 GBP | — | — |
| Hermann Habitat 2 Fan Assembly GR02850 | nationalboilerspares.co.uk | 47.3 GBP | — | — |
| GLOWWORM HIDEAWAY 100B FF 100C 115B 115C PCB 2000227134 WAS 227134 | nationalboilerspares.co.uk | 46.75 GBP | — | — |
| Glow-worm Flow Sensor – 0020014174 (Flexicom CX & Ultracom CX/CXi) | spares-direct.com | 45 GBP | — | — |
| Glow-worm 0020186153 DHW 14 Plate Heat Exchanger | spares-direct.com | 40 GBP | — | — |
| HEATLINE COMPACT S24/S30 FAN 3003200020 D003200020 | nationalboilerspares.co.uk | 37.95 GBP | — | — |
| Glowworm Essential 24C & 28C Boiler 3-Way Diverter Valve 0020097214 | nationalboilerspares.co.uk | 35 GBP | — | — |
| HEATLINE CAPRIZ COMBI 25 & 28 BOILER DIVERTER VALVE 3003200017 D003200017 | nationalboilerspares.co.uk | 34.8 GBP | — | — |
| Glow-worm 3-Bar Pressure Relief Valve (PRV) – 0020047005 (replaces 0020014173) | spares-direct.com | 30 GBP | — | — |
| Glowworm A2044300 Plume Management Extension Kit 1 Meter White | swift-spares.co.uk | 29.99 GBP | — | — |
| GLOWWORM SPACESAVER COMPLHEAT 40 50 60 70 AIR PRESSURE SWITCH S202135 202135 | nationalboilerspares.co.uk | 27.82 GBP | — | — |
| Glowworm Ultracom 24CX & 30CX Boiler PHE (16PL) Plate Heat Exchanger 0020014402 | nationalboilerspares.co.uk | 26.01 GBP | — | — |
| Glowworm S801185 Pump Housing - NEW | swift-spares.co.uk | 24.99 GBP | — | — |
| HEATLINE CAPRIZ 25 28 25S 28S PRESSURE GAUGE D004090673 WAS 3004090673 | nationalboilerspares.co.uk | 20.58 GBP | — | — |
| Glowworm S801189 Compact Flow Switch & 3 Cables E27-177 801189 - New | swift-spares.co.uk | 19.99 GBP | — | — |
| GLOWWORM 0020014174 FLEXICOM 30CX 35CX FLOW SENSOR - NEW | swift-spares.co.uk | 19.99 GBP | — | — |
| Glowworm 445012 Fireblaze Revival Control Knob - New GENUINE | swift-spares.co.uk | 15.99 GBP | — | — |
| Glowworm & Saunier Duval Boiler 3-Way Cartridge Repair Kit 2000801903 S1006400 | nationalboilerspares.co.uk | 15.7 GBP | — | — |
| Glow-worm S1024900 Z Pipe – Genuine Cold Water Plastic Pipe | spares-direct.com | 15 GBP | — | — |
| SAUNIER DUVAL ISOFAST 2000 & ISOMAX F28E PRESSURE RELIEF VALVE 05722800 57228 | nationalboilerspares.co.uk | 14.25 GBP | — | — |
| SAUNIER DUVAL THEMAPLUS CONDENS F 30E BOILER HEATING SAFETY VALVE S1006700 | nationalboilerspares.co.uk | 14.25 GBP | — | — |
| SAUNIER DUVAL THEMACLASSIC F SB 18 30 E SAFETY VALVE 0020047005 S1006700 | nationalboilerspares.co.uk | 12.99 GBP | — | — |
| GLOWWORM ULTRACOM2 24 30 38 CXI PRESSURE RELIEF VALVE PRV 2000801904 0020014173 | nationalboilerspares.co.uk | 12.99 GBP | — | — |
| GLOWWORM 0020038076 SEAL, EXCHANGER / FLUE | spares-direct.com | 11 GBP | — | — |