Skip to Main Content
Your browser is out-of-date!
Update your browser to view this website correctly.
Update my browser now
1-888-979-4284
M-F 9am-4pm EST
0
-
$0
Shop
Furnace Filters & Parts
Water Filters
Appliance Filters
Air Quality Products
Pool & Spa
Household Products
Contact Us
0
Shop
Shop Filters
Air Cleaner Filters
Air Handler Filters
Air Purifier Filters
Dehumidifier Filters
Dishwasher Filters
Dryer Lint Filters
Filter Replacements
Furnace Filters
Furnace Filter Upgrade/Maintenance Kits
HRV/ERV Filters
Humidifier Filters & Pads
Microwave Filters
Range Hood Filters
Refrigerator Air Filters
Refrigerator Water Filters
Under-Sink Water Filters
Shower Filters
Vacuum Filters
Water Filtration Systems
Shop Air Quality Products
Air Conditioners
Air Conditioner Supplies
Air Purifiers
Air Quality Monitors
Carbon Monoxide Detectors
Ceiling Fans
Dehumidifiers
Electronic Air Cleaners
Fans & Fan Accessories
HEPA Vacuums
Humidifiers
Portable Heaters
Range Hoods
Smoke Detectors
Vacuum Filters
Shop Home Comfort & HVAC Parts
Cleaning Products & Supplies
Household Tools
Humidistats
Furnace Flame Sensors
Odour Control
Steam Cylinder
Solenoid Valves
Temperature Sensors
Thermostats
Thermostat Accessories
UVA/UVC Lamps
Vacuum Bags
Water Leak Detector
Pool & Spa Filters and Supplies
Pool Sand Filters
Pool Cartridge Filters
Pool Replacement Filters Cartridges
Spa & Hot Tub Filters
Pool Cleaners
Pool Water Testing Kits
Pool Water Chemistry
Pool Maintenance Kits
Pool Maintenance Accessories
Furnace Filters & Parts
Furnace Filter Sizes
1 Inch Furnace Filters
2 Inch Furnace Filters
3 Inch Furnace Filters
4 Inch Furnace Filters
5 Inch Furnace Filters
6 Inch Furnace Filters
Furnace Filter Brands
Aprilaire Furnace FIlters
Bryant/Carrier Furnace Filters
Electro-Air Furnace Filters
Filtration Group (FG) Furnace Filters
Fresh-Aire Furnace Filters
Generalaire Furnace FIlters
Honeywell Furnace Filters
Lennox Furnace Filters
PureFilters Furnace Filters
Skuttle Furnace Filters
White-Rodgers Furnace Filters
Furnace Filter MERV Ratings
MERV 8 Furnace Filters
MERV 10 Furnace Filters
MERV 11 Furnace Filters
MERV 13 Furnace Filters
MERV 14 Furnace Filters
MERV 15 Furnace Filters
MERV 16 Furnace Filters
Furnace Parts
Upgrade/Maintenance Kits
Solenoid Valves
Furnace Flame Sensors
Steam Cylinders
UVA/UVC Lamps
Water Filters
Fridge Water Filter Brands
Bosch Fridge Water Filters
Frigidaire Fridge Water Filters
GE Fridge Water Filters
Kenmore Fridge Water Filters
KitchenAid Fridge Water Filters
LG Fridge Water Filters
Maytag Fridge Water Filters
Samsung Fridge Water Filters
Sub-Zero Fridge Water Filters
Swift Green Fridge Water Filters
Whirlpool Fridge Water Filters
All Other Water Filters
Reverse Osmosis Water Filters
Under Sink Water Filters
Water Filtration Systems
Appliance Filters
Appliance Filters
Dishwasher Filters
Dryer Lint Filters
Microwave Filters
Range Hood Filters
Dehumidifier Filters
Vacuum Filters
Vacuum Bags
Coffee Machine Filters
Refrigerator Air Filters
Air Quality Products
Air Filters
Air Cleaner Filters
Air Handler Filters
Air Purifier Filters
Dehumidifier Filters
HRV/ERV Filters
Humidifier Filters & Pads
Filter Replacement
Furnace Filters
Vacuum Filters
Air Quality & Safety
Air Movers
Air Purifiers - Portable
Air Purifiers - Whole House
Air Quality Monitors
Carbon Monoxide Detectors
Dehumidifiers
Electronic Air Cleaners
HEPA Vacuums
Humidifiers
Smoke Detectors
Range Hoods
Heating & Cooling
Air Conditioners
Air Conditioner Supplies
Ceiling Fans
Fans (Desk & Floor)
Controls
Portable Heaters
Air Register Covers
Air Vent Covers
Home Comfort Control
Thermostats
Thermostat Accessories
Temperature Sensors
Humidistats
Pool & Spa
Pool Sand Filters
Pool Cartridge Filters
Pool Filter Replacement Cartridges
Spa & Hot Tub Filters
Pool Water Testing Kits
Pool Water Chemistry
Pool Cleaners
Pool Maintenance Kits
Pool Maintenance Accessories
Automatic Pool Chlorinators
Pool Covers
Pool Toys & Inflatables
Household Products
Cleaning Products
Vacuum Bags
Household Tools
Odour Control
Water Leak Detectors
Water Heat Recovery Units
Contact Us
FAQ
1-888-979-4284
M-F 9am-4pm EST
0
Shop
Shop Filters
Air Cleaner Filters
Air Handler Filters
Air Purifier Filters
Dehumidifier Filters
Dishwasher Filters
Dryer Lint Filters
Filter Replacements
Furnace Filters
Furnace Filter Upgrade/Maintenance Kits
HRV/ERV Filters
Humidifier Filters & Pads
Microwave Filters
Range Hood Filters
Refrigerator Air Filters
Refrigerator Water Filters
Under-Sink Water Filters
Shower Filters
Vacuum Filters
Water Filtration Systems
Shop Air Quality Products
Air Conditioners
Air Conditioner Supplies
Air Purifiers
Air Quality Monitors
Carbon Monoxide Detectors
Ceiling Fans
Dehumidifiers
Electronic Air Cleaners
Fans & Fan Accessories
HEPA Vacuums
Humidifiers
Portable Heaters
Range Hoods
Smoke Detectors
Vacuum Filters
Shop Home Comfort & HVAC Parts
Cleaning Products & Supplies
Household Tools
Humidistats
Furnace Flame Sensors
Odour Control
Steam Cylinder
Solenoid Valves
Temperature Sensors
Thermostats
Thermostat Accessories
UVA/UVC Lamps
Vacuum Bags
Water Leak Detector
Pool & Spa Filters and Supplies
Pool Sand Filters
Pool Cartridge Filters
Pool Replacement Filters Cartridges
Spa & Hot Tub Filters
Pool Cleaners
Pool Water Testing Kits
Pool Water Chemistry
Pool Maintenance Kits
Pool Maintenance Accessories
Furnace Filters & Parts
Furnace Filter Sizes
1 Inch Furnace Filters
2 Inch Furnace Filters
3 Inch Furnace Filters
4 Inch Furnace Filters
5 Inch Furnace Filters
6 Inch Furnace Filters
Furnace Filter Brands
Aprilaire Furnace FIlters
Bryant/Carrier Furnace Filters
Electro-Air Furnace Filters
Filtration Group (FG) Furnace Filters
Fresh-Aire Furnace Filters
Generalaire Furnace FIlters
Honeywell Furnace Filters
Lennox Furnace Filters
PureFilters Furnace Filters
Skuttle Furnace Filters
White-Rodgers Furnace Filters
Furnace Filter MERV Ratings
MERV 8 Furnace Filters
MERV 10 Furnace Filters
MERV 11 Furnace Filters
MERV 13 Furnace Filters
MERV 14 Furnace Filters
MERV 15 Furnace Filters
MERV 16 Furnace Filters
Furnace Parts
Upgrade/Maintenance Kits
Solenoid Valves
Furnace Flame Sensors
Steam Cylinders
UVA/UVC Lamps
Water Filters
Fridge Water Filter Brands
Bosch Fridge Water Filters
Frigidaire Fridge Water Filters
GE Fridge Water Filters
Kenmore Fridge Water Filters
KitchenAid Fridge Water Filters
LG Fridge Water Filters
Maytag Fridge Water Filters
Samsung Fridge Water Filters
Sub-Zero Fridge Water Filters
Swift Green Fridge Water Filters
Whirlpool Fridge Water Filters
All Other Water Filters
Reverse Osmosis Water Filters
Under Sink Water Filters
Water Filtration Systems
Appliance Filters
Appliance Filters
Dishwasher Filters
Dryer Lint Filters
Microwave Filters
Range Hood Filters
Dehumidifier Filters
Vacuum Filters
Vacuum Bags
Coffee Machine Filters
Refrigerator Air Filters
Air Quality Products
Air Filters
Air Cleaner Filters
Air Handler Filters
Air Purifier Filters
Dehumidifier Filters
HRV/ERV Filters
Humidifier Filters & Pads
Filter Replacement
Furnace Filters
Vacuum Filters
Air Quality & Safety
Air Movers
Air Purifiers - Portable
Air Purifiers - Whole House
Air Quality Monitors
Carbon Monoxide Detectors
Dehumidifiers
Electronic Air Cleaners
HEPA Vacuums
Humidifiers
Smoke Detectors
Range Hoods
Heating & Cooling
Air Conditioners
Air Conditioner Supplies
Ceiling Fans
Fans (Desk & Floor)
Controls
Portable Heaters
Air Register Covers
Air Vent Covers
Home Comfort Control
Thermostats
Thermostat Accessories
Temperature Sensors
Humidistats
Pool & Spa
Pool Sand Filters
Pool Cartridge Filters
Pool Filter Replacement Cartridges
Spa & Hot Tub Filters
Pool Water Testing Kits
Pool Water Chemistry
Pool Cleaners
Pool Maintenance Kits
Pool Maintenance Accessories
Automatic Pool Chlorinators
Pool Covers
Pool Toys & Inflatables
Household Products
Cleaning Products
Vacuum Bags
Household Tools
Odour Control
Water Leak Detectors
Water Heat Recovery Units
Contact Us
FAQ
FREE SHIPPING OVER $100
Furnace Filters
Sort & Filter
Featured
Best Selling
Old → New
New → Old
Low → High Price
High → Low Price
A → Z
Z → A
Home
Furnace Filters
Yes
4 Inch
Show
12
24
36
48
Home
Furnace Filters
Yes
4 Inch
Featured
Best Selling
Old → New
New → Old
Low → High Price
High → Low Price
A → Z
Z → A
Selected
Custom: Yes
Size: 4 Inch
Type
Type
Filter Replacement
Furnace Filters
Size
Size
1 Inch
12'
2 Inch
3 inches
4 Inch
5 Inch
5 inches
6 Inch
+ More
MERV
MERV
10
11
13
14
15
16
7
8
_6
+ More
Dimensions
Dimensions
10x10
10x14
10x15
10x16
10x18
10x20
10x24
10x25
10x28
10x30
10x40
11x20
12x12
12x15
12x16
12x18
12x20
12x22
12x24
12x25
12x26
12x27
12x30
12x34
12x36
13x16
13x18
13x20
13x21
13x24
13x25
14.5x27
14x14
14x16
14x18
14x20
14x22
14x24
14x25
14x27
14x28
14x30
14x36
14x4
15x15
15x20
15x25
15x30
16x16
16x18
16x20
16x21
16x22
16x24
16x25
16x26
16x27
16x28
16x30
16x32
16x36
17.5x27
17x17
17x19
17x20
17x21
17x22
17x25
17x26
18x18
18x20
18x22
18x24
18x25
18x30
18x36
19x19
19x21
19x22
19x23
19x27
20x20
20x21
20x22
20x23
20x24
20x25
20x26
20x27
20x28
20x30
20x32
20x34
20x36
21.5x21
21x21
21x22
21x23
21x26
21x27
22x22
22x24
22x26
22x28
22x36
23.5x21
23x22
23x25
24x20
24x24
24x25
24x27
24x28
24x30
24x36
25x20
25x25
25x28
25x29
25x32
26x21
27x27
28x17
28x30
28x36
29x29
29x30
30x30
30x32
30x36
8x14
8x16
8x20
8x24
8x30
9x30
+ More
Custom
Custom
Yes
Brand
Brand
Aprilaire
Bryant/Carrier
Carrier
Electro Air
FG
Fresh‐Aire UV
Generalaire
Honeywell
Lennox
PureFilters
Skuttle
White‐Rodgers
+ More
Details
Details
Pleated 24x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$420.75
Details
Details
Pleated 16x22x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 20x23x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$299.50
Details
Details
Pleated 15x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$289.75
Details
Details
Pleated 12x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$261.50
Details
Details
Pleated 18x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 17x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$299.50
Details
Details
Pleated 14x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 14x22x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$270.75
Details
Details
Pleated 10x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$233.75
Details
Details
Pleated 25x29x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$279.50
Details
Details
Pleated 16x21x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 16x16x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$261.50
Details
Details
Pleated 28x30x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$551.50
Details
Details
Pleated 25x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$462.00
Details
Details
Pleated 18x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$299.50
Details
Details
Pleated 18x18x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 15x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$270.75
Details
Details
Pleated 8x16x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$205.50
Details
Details
Pleated 25x32x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$528.75
Details
Details
Pleated 21x21x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$299.50
Details
Details
Pleated 20x21x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$299.50
Details
Details
Pleated 19x19x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 18x22x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$289.75
Details
Details
Pleated 14x24x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$280.50
Details
Details
Pleated 14x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$270.75
Details
Details
Pleated 12x36x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$332.75
Details
Details
Pleated 12x16x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$233.75
Details
Details
Pleated 10x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$261.50
Details
Details
Pleated 30x32x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$733.00
Details
Details
Pleated 28x36x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$733.00
Details
Details
Pleated 29x30x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$550.00
Details
Details
Pleated 14x16x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$258.50
Details
Details
Pleated 13x25x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$277.00
Details
Details
Pleated 12x34x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$320.00
Details
Details
Pleated 11x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$258.00
Details
Details
Pleated 10x28x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$268.50
Details
Details
Pleated 9x30x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$268.50
Details
Details
Pleated 10x24x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$261.50
Details
Details
Pleated 10x16x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$205.50
Details
Details
Pleated 10x10x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$177.25
Details
Details
Pleated 20x27x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$411.50
Details
Details
Pleated 21x23x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$308.75
Details
Details
Pleated 8x30x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$261.50
Details
Details
Pleated 8x24x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$233.75
Details
Details
Pleated 8x20x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$205.50
Details
Details
Pleated 8x14x4 Furnace Filters - (6-Pack) - Custom Size MERV 8, MERV 11 and MERV 13
From
$205.50
Details
Pleated 30x36x4 Furnace Filters - (3-Pack) - MERV 8 and MERV 11
From
$191.25
Page 1 of 3
Please enable JavaScript in your browser for better use of the website!
