This industrial-grade Parker-Watts R35 series unit manages a maximum inlet pressure of 300 PSI

This 3-cell heat exchanger is designed for specific BTU-rated units

Frequent trips usually indicate a gas supply pressure drop

Versatile Media Handling: Buna-N seals offer excellent resilience against standard oils

Nordyne 689589R Gasket 320074-702 This industrial-grade Parker-Watts R35 seriesThe Nordyne 689589R Gasket is the engineered OEM successor to the legacy Nordyne 689589, designed specifically for high performance sealing within residential and light commercial HVAC systems. As a critical furnace replacement part, this HVAC blower gasket provides a robust airtight seal between the burner assembly and the heat exchanger, preventing combustion gas leakage and maintaining optimal static pressure. Manufactured to meet exact Nortek