Designed for Vaillant Aquaplus (2002-2005), Vaillant Thermocompact 615 E, Vaillant Thermocompact 620 E (2001-2002), and Vaillant Thermocompact 624 E (2001-2002). Vaillant O-rings, gaskets, and washers are used in many sections ofyour central heating system.
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