Features:DURABLE AND NO-LEAKING:Adopting heavy-duty brass material and high-grade hot-forging and burnishing processour propane tank refill adapter is anticorrosionpressure and explosion proof. Besidesits nose tip equipped with rubber ring and precise thread connector can both provide a good sealing performance.OVER-FILLING :Built-in safety feature which can detect the capacity of the refilling gasour propane refill adapter will automatically cut off gas flow to protect the tank from over filling.UNIVERSAL FITS:Can be used to refill 1lb cylinder tanks. And the nose tip can be connected with 20 to 40lbs propane tanks.EASY INSTALLATION:Coming with standard nose tip and thread connector separately for the two ends of our adapter. Quick to connect and installno tools needed.CONSIDERATE PROTECTIVE COVER:Coming with a high-density soft rubber cover to protect the nose tip from waterand any other unwanted damage to prolong its lifespan.Note: 1. Please refill your 1lb EMPTY cylinder tank outdoors. 2. Please turn the propane tank upside down for smooth gas flow. 3. Please chill your EMPTY cylinder tank before refilling it.Specifications: Product Type: Propane Tank Refill AdapterMaterial: BrassItem Size: 6.2cm x 3.5cm x 3.5cm/2.44in x 1.38in x 1.38in (L x W x H)Item Weight: 156g/0.34lbsPackaging Size: 4.5cm x 4.5cm x 7.5cm/1.77in x 1.77in x 2.95in (L x W x H)Packaging Weight: 174g/0.38lbsPackage Lists:1 x Propane Tank Refill Adapter1 x Protective Cover