TRL/TRLD The TRL is a fully loaded workhorse, a grilling classic packed with luxury features. Complete with interior lights, exterior LEDs, rear infrared burner, rotisserie set, flame thrower valves, easy-clean briquette burner covers, and plug-and-play infrared sear zone options, the TRL makes professional grilling easy. With a commercial-grade stainless steel construction and 16-gauge stainless steel burners backed by the Summerset Lifetime Warranty, this grill is built to last.