Mr Heater 1\”-20 MTCT x 1/4\” MPT Brass LP Cylinder Adapter Product Description Specs Mr Heater 1\”-20 MTCT x 1/4\” MPT Brass LP Cylinder Adapter. Propane brass fitting. 1 In.-20 Male throwaway cylinder thread x 1/4 In. Male pipe thread. Model F273755. Product Mr Heater 1\”-20 MTCT x 1/4\” MPT Brass LP Cylinder Adapter For California Residents: WARNING: Cancer & Reproductive Harm – www.P65Warnings.ca.gov WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood