The Rheem SP20228A High Altitude Orifice Kit is designed for natural gas applications, ensuring optimal performance at high elevations. This kit includes essential components for adjusting gas flow, making it ideal for installations in mountainous regions. Constructed from durable materials, it meets industry standards for safety and efficiency. The orifice is specifically calibrated for high altitude use, ensuring reliable operation in challenging environments. Compatible with various Rheem water heaters, this kit is a must-have for maintaining compliance and performance in high-altitude settings.