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Direct OEM Integration: Designed as a drop-in replacement for the Carrier HK05SZ003
Durable Construction: Heavy-duty copper capillary resists corrosion and fatigue in high-heat zones
The integrated spring-wound carryover mechanism is a critical fail-safe
which is rated for higher temperature thresholds than standard Class A or B coils
the 300066555 refers to the valve body itself
Lochinvar & A.O. Smith 100208453 Valve 318172-701 Direct OEM Integration: Designed asThe Lochinvar & A. O. Smith 100208453 is a high capacity 1" x 1" Temperature & Pressure Relief Valve designed for critical safety management in commercial and residential hydronic heating systems. Engineered for precision performance, this T&P relief valve is rated for 200,000 BTU hr and features a fixed pressure setting of 150 PSI. As a genuine OEM replacement part, this 100208453 valve ensures exact fitment and maintains the mechanical integrity of
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