![Lennox 51W90 Pressure Switch, -0.65 in. WC specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-51w90-specs.png?v=1794089170&width=1445)
This Lennox 51W90 pressure switch is a genuine Lennox replacement switch that monitors combustion air or inducer draft pressure and confirms proper venting before allowing the furnace to ignite. It is an SPST switch rated at -0.65 in. WC. Confirm this part number against your equipment's parts list before ordering.
Specifications
| Part Number | 51W90 |
|---|---|
| Brand | Lennox |
| Type | Pressure Switch |
| Switch Rating | -0.65 in. WC |
| Contact Type | SPST |