The Forney 60332 oxygen acetylene hose coupler set 9/16 inch-18 thread and `` B '' fittings. user to increase the length of their hose for tall to reach places. Forney Industries is of America 's longest operating family-owned metal working product companies. Founded in 1932, Forney more than 5,000 products for the hardware, motor vehicle, farm and ranch and homemade markets. If you 've got metal working questions, we 've answers. Were to your success regardless of location size or needs. For use with 3/16 inch -LRB- 4.78 mm -RRB- or 1/4 inch -LRB- 6.35 mm -RRB-. Claims for warranty must be within 90 days of the date of purchase. of purchase required. This warranty does not any product that has been issue to misuse, neglect, negligence or accident, or that has been used in any way perverse to the purpose deliberate.