Tjernlund PS1503P Plug-in Air Pressure Activation Switch for Duct Fans in Central Heating and Air Conditioning Systems

Air pressure activation switch automatically turns on and off any device, but in particular it turns duct fans on and off based on the furnace and/or air conditioner blower coming on. Works with any brand duct fan, including Tjernlund Duct Booster Fans. Choose either simple black-to-black, white-to-white wiring (PS1503) or plug-in version (PS1503P). Fool-Proof Tech: simple bladder fills and allows power to flow to the fan, so no errors from over engineered circuit boards. Manufactured in the USA and backed by a 81-year-old family business.

Order Processing: After your payment is authorized and verified, we will start processing your order and this process can take from 1 to 2 business days, so please be patient with us. If we are unable to process your order due to inaccurate or incomplete payment or incorrect address information, your order processing may be delayed.

Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

FREE RETURNS on all orders!
The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.