Features: 100% Solid Brass This adapter can be used to connect any male 1/4"NPT thread adapters and refill gas to 1lb bottle or using gas supply from 1LB propane tank. Perfect adapter to get propane from a 1lb tank or to convert to regulator hose for grill Easy install by Hands or Wrench. Specifications: Item: 1LB Propane Gas Bottle Refill Adapter Material: Heavy-duty Solid Brass Connection: 1" x 20 Female Throwaway Cylinder Thread to 1/4" NPT Female Package included: 1Pc x 1LB Propane Gas Bottle Refill Adapter. .