Coleman & Nordyne Replacement A/C Drip Pan 6324-5101 Pan measures 18" x 19.50". Inside opening measures 11" x 16". Fits coils with a fin length of 16" to 17.5", not including the tubes that stick out. Replaces Coleman 3340-5011, 3440-5011, 6224-5091, 6918-3181/A and others. Replaces metal and plastic drip pans found under the air conditioning coils in most mobile home furnaces including Coleman, Nordyne and others.