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Rugged Construction: Built with high-quality ASTM A48 Class 30 cast iron and stainless steel internals for enhanced durability
the entire control must be replaced to ensure accurate sensing
allowing for seamless integration with overload relays and function modules
High-Visibility Identification: Color-coded with a green dot for rapid technical verification of the 275-degree trip rating
this component ensures a high-integrity seal while managing thermal expansion in gas-fired heating sections or power exhaust configurations
Lennox 12J37 TXV 326058-758 Rugged Construction: Built with high-qualityWhen you're out in the field facing a 5 ton residential split system with a collapsed suction pressure or hunting superheat, you need an exact replacement to get the job done right. The Lennox 12J37 TXV is a genuine R 410A thermostatic expansion valve designed specifically for Lennox indoor evaporator coils. Featuring a 3 8" ODM inlet and a 1 2" ODF outlet, this brass body valve ensures precise refrigerant metering across varying load conditions. It