AZ Patio Heaters Quartz Glass Tube Replacement for Residential Heater, 49.5" 49.5" tall 4" in diameter Does Not Include Rubber Ring Fits HLDS01-GTHG, HLDS01-GTSS heaters Reference Part number: 584736, 639564, PH08-SB, HLDS01-GTHG, HLDS01-GTSS, HLDS01-GTPC