Abstract: A condenser coil for a refrigerated beverage and food service merchandiser includes a plurality of parallel flat, multichannel heat transfer tubes and a plurality heat transfer fins extending between adjacent tubes in a generally V-shaped zig-zag pattern. In order to reduce the likelihood of fouling by the bridging of fibers therebetween, the fins are spaced apart at a dimension, w, as measured from apex to apex, of at least about 0.25 inches. In an embodiment, the plurality of heat transfer fins extend between adjacent tubes in a generally V-shaped zig-zag pattern at a spacing, as measured from apex to apex, in the range of from about 0.4 to about 0.8 inches. In an embodiment, the plurality heat transfer fins extend between adjacent tubes in a generally V-shaped pattern at a spacing, as measured from apex to apex, in range of from about ? inches to about ½ inches.