Liquid Propane Bunsen Burner, No-Tip Safety s with expanded base and easy carry handle. This is most economical. It lacks a flame stabilizer or throttle control, but it does have an air flow adjustment sleeve. It is available for Natural and LP Gas and is 6inch tall.
Natural Gas Bunsen Burner, Without flame stabilizer or throttle control; With air flow adjustment sleeve, No-Tip Safety with expanded base and easy carry handle, 6 inch