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Union 1/2 DHW Outlet

Part number (MPN)
998406
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Source
retailer parts list
checked 2026-11-06
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 998406 fit?

The sources we checked list 998406 (Union 1/2 DHW Outlet, Ariston) for: GENUS 30 MFFI COMBI NG. Always check the model and serial number on the data plate before ordering.

Does 998406 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 998406. Ask a Ariston stockist to confirm.

What should I check before fitting 998406?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

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Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.