![Lennox 88K90 Pressure Switch, 0.47 in. WC specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-88k90-specs.png?v=1794089649&width=1445)
This Lennox 88K90 is an SPST pressure switch rated 0.47 inches water column. It verifies adequate draft or combustion airflow before allowing the gas valve to open, a common safety control on gas furnaces.
Confirm this part number against your equipment's parts list before ordering.
Specifications
| Part Number | 88K90 |
|---|---|
| Brand | Lennox |
| Type | Pressure Switch |
| Switch Type | SPST |
| Pressure Rating | 0.47 in. WC |