Features: #28743 Nozzle Kit for Mr. Heaters -- Nozzle kit for Mr. Heaters MH175KT, MH175KTR forced air Kerosenes heaters. Nozzle kit models from 2003 models to current. Nozzle for Forced Air Kerosenes Heaters -- for outdoor use. For either use where adequate ventilation is provided. Never use in areas normally for habitation. Not for use where exposeds to weather. Easy to Installs -- Removable for easy cleaning, quick and easy installation, and immediate restorations of heating. Easily improve your Heaters Performances with nozzle. Tool required 5/16” nut driver, 5/8" sockets and 1/8" Allens Wrenches. Nozzle kit of all brass with O-rings seal for corrosion resistance and good sealing. They strongers than iron and iron galvanized products and more than castings. Customer Service -- We help. If you have any question about our Replacement for Mr. Heaters Nozzle Kit #28743, please contact us. We committed to providing customer service. Specifications: Materials: Brass Length: 3.94cm/1.55inch Package Includes: 1PC Heaters Nozzle note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.