![Lewis County PUD on X: "We're at your service with Efficiency Fridays and today we're reminding you to check your heat pump air filter monthly! Remember to replace or clean dirty air Lewis County PUD on X: "We're at your service with Efficiency Fridays and today we're reminding you to check your heat pump air filter monthly! Remember to replace or clean dirty air](https://pbs.twimg.com/media/GGe3QHhaUAAqORW.jpg)
Lewis County PUD on X: "We're at your service with Efficiency Fridays and today we're reminding you to check your heat pump air filter monthly! Remember to replace or clean dirty air
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Filterbuy 16x20x4 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.38 x 19.38 x 3.63 Inches) : Amazon.co.uk: DIY & Tools
![Confused by air filter airflow direction with my heatpump - Where should it point toward? Does the airflow direction change when heating vs cooling? : r/HomeMaintenance Confused by air filter airflow direction with my heatpump - Where should it point toward? Does the airflow direction change when heating vs cooling? : r/HomeMaintenance](https://preview.redd.it/mmx7igxu37u91.jpg?width=640&crop=smart&auto=webp&s=52da02dda63ab9fa4fd7290e4d454a715e2300d6)
Confused by air filter airflow direction with my heatpump - Where should it point toward? Does the airflow direction change when heating vs cooling? : r/HomeMaintenance
![Here's How Often You Should (Really) Change Your HVAC Air Filter (And What Happens If You Don't) | Paschal Air, Plumbing & Electric Here's How Often You Should (Really) Change Your HVAC Air Filter (And What Happens If You Don't) | Paschal Air, Plumbing & Electric](https://gopaschal.com/wp-content/uploads/2021/06/change-air-filter.jpg)
Here's How Often You Should (Really) Change Your HVAC Air Filter (And What Happens If You Don't) | Paschal Air, Plumbing & Electric
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