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    • Home / Products / HFS Filter Whistle
    Filter Whistle

    HFS Filter Whistle

    A dirty or clogged filter can cause your HVAC system to run harder, which can increase your energy bill or even worse could cost you money in repairs. Being notified when to replace your furnace filter on time will allow you to keep your air handler or furnace running properly, saving you energy in the long run. The filter whistle sounds when your air filter becomes 50% clogged letting you know it will soon need replacing.

    HEPAFilterSales.com

    $22.34

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    You have the best prices and you are local so I can pick up my order to save on shipping costs. Your staff are always very helpful and nice when I pick up my order.

    Pat - Carlisle, PA

    Customer Testimonials

    We love your company! We have been dealing with your company for several years for replacement part for our UV system. However we still compare prices with other online companies for the best deal and consistently you all win out.

    Bennie W. - Saint Petersburg, FL

    Customer Testimonials

    This is the second time I have ordered my filters through this website. Very easy to do, brought my account right up. Excellent service, very realistic prices. That hasn't changed since last time I purchased. That is a great big Plus! Thank you so much, will be back!

    Sherry M. - Longview, TX