This natural gas burner has a 1 1/2" diameter grid that channels flames through 100 openings to provide uniform heat. Output is 800 to 1200 BTU. Features include a serrated gas inlet, nickel-plated venturi tube, and die-cast zinc allowy, nickel plated octagonal base. Measures 8 1/2H x 3 3/8Dia". Latex tubing for use with these burners is sold separately (see below). Complies with Federal Specification NNN-B-795.