HAXBPK1931 Pool Heater By-Pass Kit - Replacement for H-Series Millivolt ED1 Style Heaters - Models H2001, H1501, H2501 - Pre-10/28/2000 Units

【Direct Replacement】: Specifically designed as a replacement by-pass kit for H-Series Millivolt Electronic ED1 Style Pool Heater models H2001, H1501, and H2501; ensuring a perfect fit and compatibility. 【Compatibility】: Compatible with pool heaters manufactured before October 28, 2000; providing a reliable solution for older models requiring by-pass kit replacement; this kit restores original functionality. 【Optimal Water Flow】: Facilitates efficient water flow around the heater; helping to maintain consistent temperature regulation and prevent overheating; crucial for efficient pool heating. 【Durable Construction】: Weighs 14.4 lbs; indicating robust construction and long-lasting durability; designed to withstand the demands of pool heating systems and ensure reliable performance. 【Easy Installation】: Engineered for straightforward installation; making it suitable for experienced pool maintenance personnel; restores the original functionality of your heater system quickly and effectively.