DoorJamb™ Hoses in... Unwanted Temperatures out! Cold air, hot air, bugs and animals are kept outside where they belong, winter or summer, when you use the quick and easy to install DoorJamb™. All true professionals will now be able to protect the customer's environment and still be able to run hoses through the door. This is another tool that really tells your customers that you care! When finished, the DoorJamb™ easily rolls into a compact bag for storage.