FOR SALE IS ONE (1) NEW PREMIUM AIR CONDITIONER INSULATING FOAM SEAL BY DUCK BRAND MPN 1284138 UPC# 075353091074. THIS IS NO SIMPLE FOAM. DUCK PREMIUM INSULATING FOAM IS CONSTRUCTED OF VERY DENSE PREMIUM WHITE POLYURETHANE FOAM RUBBER MUCH LIKE MEMORY FOAM or HIGH QUALITY ANTI FATIGUE FLOOR MAT (see image of cross section). WORKS BETTER AND LASTS LONGER THAN TYPICAL GRAY color FOAM, WHICH IS LESS DENSE AND DEGRADES AFTER A SEASON OR TWO. THIS PRODUCT WAS ABLE TO SEAL MY DOUBLE HUNG SASH WINDOWS PERFECTLY AND MAKE MY WINDOW AC UNIT ABSOLUTELY AIRTIGHT. KEEPS OUT DUST, INSECTS AND POLLEN, KEEPS COOL AIR INSIDE AND HOT AIR OUTSIDE. IT HAS LASTED 4 SEASONS AND IS STILL IN GREAT CONDITION, MUCH UNLIKE THE CHEAP GRAY LOW DENSITY FOAM THAT OFTEN DISINTEGRATES AFTER A FEW SEASONS. THIS PREMIUM WINDOW AIR CONDITIONER INSULATING FOAM SEALS OUT SUMMER HEAT, HUMIDITY AND KEEPS THE COOL AIR IN, MINIMIZES NOISE AND VIBRATION, KEEPS OUT DUST, INSECTS AND POLLEN. USE THIS SEAL ON TOP OF YOUR UNIT AROUND YOUR UNIT, UNDER YOUR UNIT AND BETWEEN YOUR DOUBLE SASH WINDOWS. FOR USE WITH WINDOW AIR CONDITIONER UNITS. DIMENSIONS ARE 1 3/8" WIDE x 1/2" THICK x 42" LONG, ENOUGH FOR ONE AIR CONDITIONING WINDOW UNIT. PROPERLY SEALING AND INSULATING YOUR HOME CAN BE AN EASY WAY TO INCREASE COMFORT, SAVE MONEY ON ENERGY COSTS AND INCREASE HOME ENERGY EFFICIENCY. COMPLETING THESE SIMPLE PROJECTS ALSO MEANS YOU'RE DOING YOUR PART TO CONSERVE THE EARTH'S RESOURCES. THIS NON ADHESIVE INSULATING FOAM IS VERY DENSE AND REQUIRES SCISSORS AND A FEW MINUTES TO SAVE ON YOUR NEXT ELECTRICITY BILL. YOU WILL RECEIVE ONE (1) PACKAGE OF DUCK BRAND PREMIUM AIR CONDITIONER INSULATING SEAL SHIPPED BY USPS FIRST CLASS MAIL..... note..... i also sell duck brand insulating side panels for window ac units. these easy and effective panels allow you to insulate or replace your existing side panels and keep the cool air inside and the hot air outside...... go to my other items and search keywords AIR CONDITIONER BID AND BUY HERE IN IN ABSOLUTE CONFIDENCE SINCE I HAVE THOUSANDS OF POSITIVE FEEDBACK AND TEN+ YEARS EXPERIENCE. I SHIP WITHIN TWO DAYS OF RECEIPT OF PAYMENT, OFTEN THE NEXT DAY. $3.81 USPS FIRST CLASS GREEN SHIPPING USING RECYCLED PACKAGING MATERIALS AND ENVIRONMENTALLY FRIENDLY MATERIALS TO ANYWHERE USA. I DO NOT SHIP ANYWHERE ELSE. HAVE A GREAT DAY AND THANK YOU FOR STOPPING BY.......