Fits models: "DEFY" 420 Series, "DEFY" 422 Series, "DEFY" 501 Series, "DEFY" 511 Series, "DEFY" 520 Series, "DEFY" 521 Series, "DEFY" 550 Series, "GEMINI" Hob, "KITCHENMASTER", "SPACESAVER", DBO248, DBO249, DBO250, DBO251, DBO252, DBO253, DBO254, DBO259, DBO262, DBO265, DBO266, DBO272, DBO273, DBO275, DBO276, DBO277, DBO278, DBO304, DBO305, DBO306, DBO309, DBO310, DBO311, DBO312, DBO313, DBO314, DBO315, DBO316, DBO320, DBO321, DBO322, DBO323, DBO324, DBO325, DBO330, DBO332, DBO333, DBO334, DBO335, DBO336, DBO337, DBO339, DBO379, DHD200, DHD220, DHD221, DHD225, DHD226, DHD301, DHD302, DHD304, DHD310, DHD339, DSS310, DSS312, DSS315, DSS316, DSS320, DSS352, DSS353, DSS355, DSS356, DSS358, DSS364, DSS372, DSS375, DSS376, DSS412, DSS416, DSS478, DSS481, DSS482.
Use
CK67419 as the knob for this "New design" ringer timer.