Reznor 221637 Gasket 320734-701 As a factory-calibrated OEM pressure

As a factory-calibrated OEM pressure sensor

Always allow the filter to dry completely before reinstalling to prevent microbial growth

Can the H-723LC be used on the load side of a Variable Frequency Drive

Enhanced System Reliability: Minimizes compressor stress by maintaining the engineered pressure differential across the liquid line

While it can be mounted in horizontal or vertical piping

Reznor 221637 Gasket 320734-701 As a factory-calibrated OEM pressureThe Reznor 221637 Gasket set is a critical OEM replacement part designed specifically for sealing the header and heat exchanger interfaces in high efficiency gas fired unit heaters. Engineered for a precise fit, this heater gasket kit prevents combustion gas leakage and maintains the necessary static pressure within the burner cabinet. Technicians typically utilize this set during internal heat exchanger inspections or when replacing a Reznor burner