Is the gasket included with the 735006904 filter

this is a proprietary Berko heater accessory

This general service valve is a staple for contractors requiring durable fluid control components that minimize pressure drop and ensure consistent shut-off cycles

this brass drain valve is designed for use in residential and commercial water heating systems

What does it mean if my current lead reads "OL" on a multimeter

Trane SWT3968 Rollout Switch 323269-701 Is the gasket included withThe Trane SWT3968 Rollout Switch is a critical safety component engineered for gas fired furnaces and HVAC systems. As a genuine OEM replacement part, this manual reset flame rollout switch is calibrated to open the electrical circuit when internal temperatures at the burner box exceed the fixed threshold of 190F (L190F). Designed with an enclosed stainless steel disc and high grade unplated brass terminals, this SPST (Single Pole Single Throw)