Chaffoteaux Ariston 921023 Regulation Thermostat This part fits the following 15 appliances (sorted alphabetically): Ariston ST 100 Ariston ST 100 from serial no. 9700000 Ariston ST 50 Ariston ST 50 from serial no. 97000000 Ariston ST 75 Ariston ST 75 from serial no. 97000000 Ariston STDI 100 UK Ariston STDI 125 UK Ariston STDI 150 UK Ariston STDI 210 UK Ariston STDI 300 UK Ariston STT 125 UK Ariston STT 150 UK Ariston STT 210 UK Ariston STT 300 UK May fit others
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