This SOX rubber insert features a solid center

What unit heater models utilize this pilot orifice

Particulate Filtration: 20-micron filtration protects sensitive downstream metering devices from clogging and debris

The K15DA-36 is technically identical to the K15DS-36 and K15DA-36H variants

White-Rodgers 90-382 Relay This SOX rubber insert featuresProfessional grade White Rodgers 90 382 Fan Relay is a heavy duty Type 184 switching solution engineered for 120V HVACR control circuits. As a veteran preferred SPNO & SPNC 120V Relay, this unit provides both normally open and normally closed contacts, making it essential for managing fan speeds in furnaces and air handlers. The enclosed fan relay design protects internal components from dust and debris, ensuring reliable inductive load switching up