The Hurricane Pad™MD HMD1840-4 is a 18x40x4 in. pad designed specifically for condenser installations in Miami-Dade counties of Florida. The Hurricane Pad MD meets the stringent local code requirements for Miami-Dade 175 mph wind zones. Check with your local DiversiTech® distributor or our online wind table chart to confirm if this pad is correct for your application. Shipping is Prepaid at $2000 for AL, FL & GA only, all other states ship FOB Leesburg, FL. This product is made by DiversiTech®.