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HVAC Air Pressure Switch - ESP RSS-495-011
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Description
## HVAC Air Pressure Switch - ESP RSS-495-011
This is an ESP (Energy Saving Products) RSS Universal Air Switch, model RSS-495-011, designed for HVAC applications. The device is a circular black plastic pressure switch measuring approximately 4 inches in diameter with mounting tabs extending the overall width to about 5.5 inches. Two clear plastic tubing connections protrude from the bottom, each roughly 6 inches long.
The switch operates within a range of -2" W.C. to 1.0" W.C. (water column pressure) and can sense positive pressure, negative pressure, or differential pressure. It features safety approvals from UL, CSA, CUL, and CE. The item appears to be new/unused condition in original retail blister packaging, with no visible wear or damage to either the switch or packaging.
Based on the professional-grade certifications and universal application design, this appears to be a quality HVAC component likely manufactured within the last 10-15 years. Similar ESP air switches typically retail for $45-75 new, with this sealed package example having an estimated current market value of **$40-60 USD** based on typical HVAC supply pricing for pressure sensing switches of this specification level.
This is an ESP (Energy Saving Products) RSS Universal Air Switch, model RSS-495-011, designed for HVAC applications. The device is a circular black plastic pressure switch measuring approximately 4 inches in diameter with mounting tabs extending the overall width to about 5.5 inches. Two clear plastic tubing connections protrude from the bottom, each roughly 6 inches long.
The switch operates within a range of -2" W.C. to 1.0" W.C. (water column pressure) and can sense positive pressure, negative pressure, or differential pressure. It features safety approvals from UL, CSA, CUL, and CE. The item appears to be new/unused condition in original retail blister packaging, with no visible wear or damage to either the switch or packaging.
Based on the professional-grade certifications and universal application design, this appears to be a quality HVAC component likely manufactured within the last 10-15 years. Similar ESP air switches typically retail for $45-75 new, with this sealed package example having an estimated current market value of **$40-60 USD** based on typical HVAC supply pricing for pressure sensing switches of this specification level.
Origin
N. Olmsted Cleanout
Listed
March 1, 2026