The regulator on the grill can leak gas which can ignite, posing a fire and burn hazard to consumers.
This recall involves Iroda models 1000 and 3000 produced before 2010.
Some were also sold under the Tailgating Gear brand.
Both models are lightweight, portable, clamshell-type propane grills with steel bodies, cast iron cooking surfaces, retractable legs and a handle.
The grills come in orange, red, green, blue, silver and black and have the words "O-Grill" stamped on the metal grill cover.
Recalled O-Grills do not have ventilation slots in the regulator cover where the propane bottle screws in.
Grills with ventilation slots in the regulator cover are not subject to the recall.
They were sold by LL Bean, Stoneman, BBQG, Walgreens, REI, Dillards and Dick's Sporting Goods nationwide from November 2008 through December 2010.
The O-Grill 1000 sold for $149 and the O-Grill 3000 sold for $189.
Consumers should immediately stop using the grills and contact Uni-O to receive a free replacement grill.
For additional information, contact the firm toll-free at (888) 847-8968 between 7 a.m. and 6 p.m. CT Monday through Friday, or visit the firm's website at www.regcen.com/OGRILL