FITS 4-SIDED PYRAMID PATIO HEATERS. SEAL TIGHT. DOESN'T BREAK: Our replacement glass tube for patio heater is 4 inches in diameter and 49.5 inches in height, COMPATIBLE WITH 4-SIDED PYRAMID PATIO HEATER. Includes neoprene rubber ring worth $10 for a TIGHT FIT. Made of quartz glass, DOESN'T BREAK even at high temperatures. Comes in protective foam packaging, DOESN'T BREAK during transit. TIGHT FIT: Includes NEOPRENE RING worth $10 for TIGHT FIT. This glass tube patio heater is also called outdoor heater tube, quartz glass tube replacement, glass for patio heater, patio heater tube, patio heaters parts, outdoor patio heater parts replacement, glass tube for outdoor heater, replacement parts for patio heater, glass tube replacement for patio heater, patio heater replacement glass tube, glass tube replacement heater, patio heater quartz glass tube, propane heater glass tube. COMPATIBLE WITH 4-SIDED PYRAMID PATIO HEATER: Our outdoor heater glass tube fits Fire Sense, Az Patio Heaters, Garden Radiance, Well Traveled Living, Gardensun/Wellife, Golden Flame, Prime Glo, Hiland & Costco Models 61220 & 61221, Napolean, Xtremepower USA, Giantex, Thermo Tiki Heaters, Ambiance, HLDS01-GTHG, HLDS01-GTSS patio heaters. Reference part number: 584736, 639564, PH08-SB, HLDS01-GTHG, HLDS01-GTSS, HLDS01-GTPC. DOESNT FIT FOR 3-SIDED PATIO HEATER.