【Material & Performance】The glass tube is made of high-purity quartz, which is strong and durable. The softening point temperature of high-purity quartz glass is about 1730℃, high temperature resistance, and can be used in heaters with confidence. 【Installation】Super easy to install, just put the glass tube into the pyramid heater and install it firmly. 【Size】It is 49.5 inches high and 4 inches in diameter. It is the best replacement for Pyramid Heater. Suitable for all 4-sided pyramid outdoor heaters about 89.4 inches high (not applicable to 91 inches high 3-sided heaters). 【Contain part】The double-ended open quartz glass tube includes a black rubber ring, which can be used to seal and fix the lower part of the glass tube to the bottom. 【After-sales service】The quality of our products is guaranteed, you can contact us at any time if you have any questions, we will answer your doubts within 24 hours, and we are glad to serve you. PAMAPIC Patio Heater Glass Tube Replacement for 4-Sided Outdoot Patio Pyramid Heater，49.5 inch tall