the Reznor 90204 is specifically calibrated for Natural Gas

Corrosion Protection: Acts as a barrier against oxidation and environmental contaminants

Designed with a 3/4" NPT connection

It comes equipped with a 3/8" x 1/2" SAE flare connection and an externally equalized 1/4" SAE flare

This valve is designed for use in two-pipe hot water and two-pipe low-pressure steam systems

Nordyne 664272R TXV 321142-301 the Reznor 90204 is specificallyThe Nordyne 664272R is a precision engineered R410A 2 Ton TXV designed for accurate refrigerant metering in split system heat pumps and air conditioning units. As a direct OEM replacement thermal expansion valve, it ensures optimal evaporator performance by maintaining a constant superheat across varying load conditions. This valve is critical for preventing liquid slugging and protecting the compressor from damage during low load operation. Designed