The model 136 is a extra heavy duty, high capacity, mill & foundry 2 hose torch that requires 3/8" hose and has a cutting capacity up to 36". It features a brazed triangular SS tubes, SS head and an internal tip nut. Recommended tips: 136 & 140 series. Not for use with acetylene. **Special order- No Returns, No Cancellations, No Prepaid Shipping.