<p> Keep your Mr. Heater® Portable Buddy® or Big Buddy® Heater in top operating condition with this easy-to-use fuel filter from Mr. Heater. Most commonly used with a bulk cylinder and hose assembly, this screw-in attachment filters out oil and particle contamination which could potentially cause damage to your Mr Heater unit.<br> Manufacturer model #: F273699.</p> <ul> <li>Easy-to-use fuel filter keeps your Portable Buddy or Big Buddy Heater (not included) in top condition</li> <li>Great for use with bulk cylinder and hose assembly</li> <li>Filters out oil and particle contamination which could potentially cause damage</li> <li>Simply screws in between hose and heater</li> </ul>