There are several different typs of Duct boots to consider when shopping. Most importantly is your aplication. We have made it easy for you to decide which product suits your aplication. By referencing the image it clearly defines that the first listed dimesion is the width of the rectangular portion, the second dimension is the dimesion of the depth of the rectangular portion, the third dimension is the diameter of the round portion. And last but not lease some of boots also include an extension. This is the dimension that is the straight portion located on the rectangular portion of the. Please note that if there is no "EXTENSION" listed in description it is no included and equals zaero. If you have questions please feel free to contact us.
A straight register boot or PH1 is a major component of an excellent ductwork system. The boot can be fastened to other ducts, including ceiling and wall units, using a nail and screw. Expect to spend about 20 minutes or less installing register boots. Airtight gaskets in the products reduce and eliminate leaks in heating, ventilation and air conditioning (HVAC) systems. These leak stoppages save you money and lower energy consumption. Straight collars and wider and narrower straight boots can be used to meet your HVAC design needs. Narrower boots start at 8-5" with wider boots going up to 14 inches.
A 90 deg register boot or PH2 is made to easily transition airflow from a round flexible or hard duct to a reactangular register or vent. The Longer kneck allows you to install easily in the ceiling or wall and easily connect your round duct. The airtight design also improves your heating, ventilation and air conditioning (HVAC) system's overall performance quality. A reinforced mud ring allows for a durable fit. For smaller jobs, there are the 3 1/4 x 8-5" through 14-8" boots. Larger jobs may call for 4 to 6 x 10-4" through 14-8" 90 deg boots.
End register boot or PH3 products are used to transition or connect rectangular and round sheet metal ductwork. For example, you can use an end register boot to connect a round sheet metal pipe to a rectangular wall stack. Whether you are building a brand new structure like a home or office complex or remodeling an existing facility, you can use the products to build out or improve upon existing standard heating, ventilation and air conditioning (HVAC) systems. Products are available in a range of sizes from 8-5", going up to 14-7". The durable metal and aluminum products hold up well beneath low to medium pressure.