VAILLANT 0020209346 WALLSEAL INSIDE(100-165)Vaillant 0020209346 Wall seal, inside (100 165). The Heatxchange are suppliers of GENUINE Vaillant parts and spares.

VU 126/5-5 R4

✅ Product Features:✔️ Genuine Worcester Bosch spare part✔️ Part Number: 87161065450✔️ Copper return / flow pipe assembly✔️ OEM quality replacement component✔️ Ensures correct water circulation in boiler✔️ Durable copper construction✔️ Reliable and long-lasting design✔️ Ideal for servicing and boiler repairs

Suitable for use with Altecnic Reflex Potable Water expansion vessel

Vaillant Electronic Expansion Valve'S Coil 0020099853

OPTIMA 901

✔️ 1 × Vaillant 130822 Printed Circuit Board With Display (Grey)

The casing will vary depending on the appliance in question

Prevents the burner from running without water flow (important safety function)

Glowworm MICRON 50 FF

Ferroli 39841840 FAN GASKET DE83 DI35

Open vent systems

🔧 Designed to restore reliable ignition performance and flame detection