The Williams P200900 provides a specific thickness and seal density required for the combustion chamber's pressure dynamics

it ensures reliable ignition and flame stability

Field Service Compliance: Supplied with official gas conversion stickers and nameplate labels to satisfy local code inspection and safety requirements

or 9MPT series

Bard 8406-079BX Switch 321894-708 The Williams P200900 provides aThe Bard 8406 079BX Switch is an OEM differential pressure switch engineered for precision air pressure monitoring in Bard HVAC systems. This . 63" WC pressure switch is a critical component for verifying airflow proving and static pressure, ensuring your wall mount units or packaged systems operate within safe parameters. Field proven for reliability, the 8406 079BX features a factory set trip point of . 63 inches Water Column, making it an essential