Breathe Better Air

Air Filters

The right filter helps keep your HVAC unit working efficiently by removing dirt and reducing strain on the motor. When your unit runs properly, it consumes less energy, requires less maintenance and will have a longer life. These factors will have an impact on your utility bill and maintenance costs. It is recommended that you change the filter every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.

National Supply Centre is a full service HVAC store offering quality pleated, throwaway and media air filters. Our expert staff can help you determine the best filter for both optimal air quality and furnace efficiency.

Competitive Pricing

Think big box retailers always have the best prices? Think again! National’s filter pricing is competitive with all major big box retailers!

National Supply Air Filters
air filter quantities

Buy in Bulk

Unlike big box retailers we offer customers the option to buy filters in bulk packs of 6 or 12 and save money.

Custom Sizes & Ratings

We stock a wide variety of filter sizes and specifications. If we don’t have your preferred filter in stock we will order it in at no extra cost to you. Custom sizes available!
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