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Drain Valve

Part number (MPN)
573727
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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 573727 fit?

The sources we checked list 573727 (Drain Valve, Ariston) for: Ariston ACO Floor 35, ACO FLOOR 35 SYSTEM NG, CHALLENGER 80 E COMBI NG, EUROCOMBI A23 MFFI COMBI NG, EUROCOMBI A27 MFFI COMBI NG, GENUS 23 MI COMBI NG, Ariston Genus 23 Mffi UK, GENUS 27 PLUS ED 3 COMBI NG, Ariston Genus 27 Bffi Plus, Ariston Genus 27 Bffi UK, Ariston Genus 27 Mffi UK, Ariston Genus 27 RFFI System, GENUS 30 MFFI COMBI NG, Ariston Genus 30 Mffi UK, Ariston Sx 20 20 M, Ariston Sx 20 MFF, Ariston Sx 20 Mffi Ce, DIA 20 MFFI CE from serial no, DIA 20 MFFI CE LPG from serial, DIA 24 MFFI CE from serial no, DIA 24 MFFI CE LPG from serial, DIA SYSTEM 27 RFFI from serial, DIA SYSTEM 27 RFFI LPG from se, ECOGENUS 24 MFFI from serial n, ECOGENUS 24 RFFI SYSTEM from s. Always check the model and serial number on the data plate before ordering.

Does 573727 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 573727. Ask a Ariston stockist to confirm.

What should I check before fitting 573727?

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Some lists are dated and the part may have been superseded.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.