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4" furnace filters Canada

Four inch furnace filters measure 3-3/4" wide as is standard in Canada.

FREE SHIPPING IN CANADA

Available in many sizes listed below (16x25x4, 20x25x4, 20x20x4 and more)

 

Different qualities for more or less effectiveness as per the MERV rating system:

Throwaway, MERV 8, MERV 10, MERV 11, MERV 13 and Carbon odour control.

16x25x4 MERV 8 standard efficiency furnace filters Canada

16 x 25 x 4 MERV 8 Furnace Filters Canada Box of 6

$149.00

20x20x4 MERV 8 standard efficiency furnace filters Canada

20 x 20 x 4 MERV 8 Furnace Filters Canada Box of 6

$186.99

20x25x4 MERV 8 standard efficiency furnace filters

Aerostar 20 x 25 x 4 MERV 8 Furnace Filters Canada Box of 4

$179.99

16x20x4 MERV 8 standard efficiency furnace filters Canada

MERV 8 16 x 20 x 4 Furnace Filters Canada Box of 6

$189.99

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