Heath Zenith Heath Zenith SL-125-02 Doorbell Transformer, 10 to 20 VA $24.75EachChecking...Dimensions: 2-1/2 In W X 2-1/4 In D X 2-1/8 In HVA Rating10 To 20 VADimensions2-1/2 In W X 2-1/4 In D X 2-1/8 In H
