ACME male & POL female thread x 1lb disposable cylinder thread Hook up a standard 1lb propane tank to your standard BBQ gas grill Bulk tank steak saver adapter. Save dinner by continuing to grill with a 1lb bottle when your 20lb tank runs out High quality 100% solid brass construction makes it corrosion resistant Easy and quick to install to propane appliances Are you cooking out and suddenly run out of propane Unexpected outage on your RV's gas system Need an emergency grilling hook up No Need to worry, introducing our disposable propane cylinder bottle adapter This Disposable Propane Bottle Adapter allows you to connect a 1 lb propane canister to a regular hose and regulator. For P.O.L or Type 1 Regulators.When your bulk propane tank runs out of gas, attach this adapter to your grill and a 1 lb propane cylinder to continue cooking - POL fittings and Type 1 connections. Product features Improved quality made of durable brass heavy duty 100% Easy and quick to install allow you to use 1 lb propane cylinder with your bbq grill Great for cookouts, barbecue, caterers, tailgaters, campers and more