16-12-x-21-12-x-1-air-filter

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Aerostar 16 1/2x21 1/2x1 MERV 13 Air Filter, 12 Pack (16 1/2" x 21 1/2" x 3/4")
Aerostar 16 1/2x21 1/2x1 MERV 13 Air Filter, 12 Pack (16 1/2" x 21 1/2" x 3/4")

$111.56

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Aerostar 16 3/8x21 1/2x1 MERV 11 Furnace Air Filter, 12 Pack
Aerostar 16 3/8x21 1/2x1 MERV 11 Furnace Air Filter, 12 Pack

$97.08

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Aerostar 16 1/2 x 21 1/2 x 1 MERV 8 Furnace Air Filter, 6 Pack
Aerostar 16 1/2 x 21 1/2 x 1 MERV 8 Furnace Air Filter, 6 Pack

$55.36

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16 1/2x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 8, Box of 12
16 1/2x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 8, Box of 12

$82.02

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Aerostar 16 3/8x21 1/2x1 MERV 11 Furnace Air Filter, 4 Pack
Aerostar 16 3/8x21 1/2x1 MERV 11 Furnace Air Filter, 4 Pack

$40.22

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Aerostar 16 1/2x21 1/2x1 MERV 8 Furnace Air Filter, 4 Pack
Aerostar 16 1/2x21 1/2x1 MERV 8 Furnace Air Filter, 4 Pack

$37.79

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AEROSTAR 16 3/8" x 21  1/2" x 1" MERV 11 PLEATED AC FURNACE AIR FILTERS 4 PACK
AEROSTAR 16 3/8" x 21 1/2" x 1" MERV 11 PLEATED AC FURNACE AIR FILTERS 4 PACK

$29.99

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Simply Filters 16x21x1 MERV 8, MPR 600, AC Furnace HVAC Air Filter
Simply Filters 16x21x1 MERV 8, MPR 600, AC Furnace HVAC Air Filter

$119.13

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Aerostar 16 3/8x21 1/2x1 MERV 8 Furnace Air Filter, 4 Pack
Aerostar 16 3/8x21 1/2x1 MERV 8 Furnace Air Filter, 4 Pack

$38.79

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16 1/2x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12
16 1/2x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12

$91.81

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Aerostar 16 3/8x21 1/2x1 MERV 13 Furnace Air Filter, 12 Pack
Aerostar 16 3/8x21 1/2x1 MERV 13 Furnace Air Filter, 12 Pack

$109.77

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Simply Filters 16x21x1 MERV 11, MPR 1000, AC Furnace HVAC Air Filter
Simply Filters 16x21x1 MERV 11, MPR 1000, AC Furnace HVAC Air Filter

$143.99

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Aerostar 21 1/2x23 5/16x1 MERV 8 Furnace Air Filter, 12 Pack
Aerostar 21 1/2x23 5/16x1 MERV 8 Furnace Air Filter, 12 Pack

$110.33

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Furnace Air Filter, 6 Pack

$55.75

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16 1/2x21 5/8x1 AC and Furnace Air Filter by Aerostar - MERV 8, Box of 12
16 1/2x21 5/8x1 AC and Furnace Air Filter by Aerostar - MERV 8, Box of 12

$83.07

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 13 Furnace Air Filter, 6 Pack
Aerostar 16 3/8 x 21 1/2 x 1 MERV 13 Furnace Air Filter, 6 Pack

$62.77

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Simply Filters 16x21x1 MERV 13, MPR 1500, AC Furnace HVAC Air Filter
Simply Filters 16x21x1 MERV 13, MPR 1500, AC Furnace HVAC Air Filter

$172.79

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21-1/2 x 23-5/16 x 1 MERV 10 Replacement Air Filters for Carrier, Bryant, Payne.
21-1/2 x 23-5/16 x 1 MERV 10 Replacement Air Filters for Carrier, Bryant, Payne.

$131.12

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21-1/2 x 23-5/16 x 1 Air Filter Glasfloss ZL Series MERV 10 - Box of 12
21-1/2 x 23-5/16 x 1 Air Filter Glasfloss ZL Series MERV 10 - Box of 12

$125.86

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Pamlico 21-1/2 x 23-5/16 x 1 MERV 11 ( FPR 8-9 ) Pleated Air Filters. Case of 12
Pamlico 21-1/2 x 23-5/16 x 1 MERV 11 ( FPR 8-9 ) Pleated Air Filters. Case of 12

$99.97

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Aerostar 16 1/2 x 21 1/2 x 1 MERV 11 Furnace Air Filter, 6 Pack
Aerostar 16 1/2 x 21 1/2 x 1 MERV 11 Furnace Air Filter, 6 Pack

$67.12

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Aerostar 16x21x1 MERV 8 Air Filter, 12 Pack (15 7/8" x 20 7/8" x 3/4")
Aerostar 16x21x1 MERV 8 Air Filter, 12 Pack (15 7/8" x 20 7/8" x 3/4")

$92.55

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Pamlico 16-3/8 x 21-1/2 x 1 MERV 13 ( FPR 10 ) Pleated Air Filters.  Case of 12
Pamlico 16-3/8 x 21-1/2 x 1 MERV 13 ( FPR 10 ) Pleated Air Filters. Case of 12

$113.97

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Aerostar 16 1/4x21 1/2x1 MERV 8 Air Filter, 12 Pack (16 3/8" x 21 1/2" x 3/4")
Aerostar 16 1/4x21 1/2x1 MERV 8 Air Filter, 12 Pack (16 3/8" x 21 1/2" x 3/4")

$83.04

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16 1/4x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12
16 1/4x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12

$94.07

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Aerostar 16x21x1 MERV 11 Furnace Air Filter, 12 Pack
Aerostar 16x21x1 MERV 11 Furnace Air Filter, 12 Pack

$128.64

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Aerostar 21 1/2x23 5/16x1 MERV 8 Air Filter, 6 Pack (21 1/2" x 23 5/16" x 3/4")
Aerostar 21 1/2x23 5/16x1 MERV 8 Air Filter, 6 Pack (21 1/2" x 23 5/16" x 3/4")

$64.09

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16 1/2x21 5/8x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12
16 1/2x21 5/8x1 AC and Furnace Air Filter by Aerostar - MERV 11, Box of 12

$91.82

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Aerostar 16x21x1 MERV 13 Air Filter, 12 Pack (15 7/8" x 20 7/8" x 3/4")
Aerostar 16x21x1 MERV 13 Air Filter, 12 Pack (15 7/8" x 20 7/8" x 3/4")

$165.46

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Filter King 16x21x1 Air Filter 12-PACK MERV 13 Actual Size 16 x 21 x .75"
Filter King 16x21x1 Air Filter 12-PACK MERV 13 Actual Size 16 x 21 x .75"

$150.33

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16 1/4x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12
16 1/4x21 1/2x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12

$124.04

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Aerostar 16 3/8x21 1/2x1 MERV 13 Furnace Air Filter, 4 Pack
Aerostar 16 3/8x21 1/2x1 MERV 13 Furnace Air Filter, 4 Pack

$55.45

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Glasfloss 16-3/8 x 21-1/2 x 1 MERV 10 Air Filters for Carrier, Bryant, Payne.
Glasfloss 16-3/8 x 21-1/2 x 1 MERV 10 Air Filters for Carrier, Bryant, Payne.

$45.04

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 8 Furnace Air Filter, 6 Pack
Aerostar 16 3/8 x 21 1/2 x 1 MERV 8 Furnace Air Filter, 6 Pack

$39.87

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(12) 16-1/2 x 21-1/2 x 1 Filter Pads Blue / White Polysynthetic 2-Stage Media
(12) 16-1/2 x 21-1/2 x 1 Filter Pads Blue / White Polysynthetic 2-Stage Media

$63.95

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20x22x1 (19_1/2x21_7/16) Pleated MERV 12 Air Filters 6 Pack
20x22x1 (19_1/2x21_7/16) Pleated MERV 12 Air Filters 6 Pack

$74.99

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20x22x1 (19_1/2x21_7/16) Pleated MERV 12 AC Furnace Filters 3 Pack
20x22x1 (19_1/2x21_7/16) Pleated MERV 12 AC Furnace Filters 3 Pack

$46.99

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 8 Furnace Air Filter, 6 Pack
Aerostar 16 3/8 x 21 1/2 x 1 MERV 8 Furnace Air Filter, 6 Pack

$46.26

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Filter King 16x21x1 Air Filter 12-PACK MERV 13 Actual Size 15.5 x 20.5 x .75"
Filter King 16x21x1 Air Filter 12-PACK MERV 13 Actual Size 15.5 x 20.5 x .75"

$187.29

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Aerostar 21 1/2x23 5/16x1 MERV 13 Furnace Air Filter, 12 Pack
Aerostar 21 1/2x23 5/16x1 MERV 13 Furnace Air Filter, 12 Pack

$134.69

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Pamlico 16-3/8 x 21-1/2 x 1 MERV 11 ( FPR 8-9 ) Pleated Air Filters.  Case of 12
Pamlico 16-3/8 x 21-1/2 x 1 MERV 11 ( FPR 8-9 ) Pleated Air Filters. Case of 12

$90.97

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Aerostar 16 3/8x21 1/2x1 MERV 8 Furnace Air Filter, 12 Pack
Aerostar 16 3/8x21 1/2x1 MERV 8 Furnace Air Filter, 12 Pack

$83.68

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16-3/8 x 21-1/2 x 1 Air Filter Glasfloss ZL Series MERV 10 - Box of 12
16-3/8 x 21-1/2 x 1 Air Filter Glasfloss ZL Series MERV 10 - Box of 12

$104.48

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16 1/2x21 5/8x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12
16 1/2x21 5/8x1 AC and Furnace Air Filter by Aerostar - MERV 13, Box of 12

$110.23

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Pamlico 21-1/2 x 23-5/16  x 1 MERV 13 Pleated Air Filters.  Case of 12
Pamlico 21-1/2 x 23-5/16 x 1 MERV 13 Pleated Air Filters. Case of 12

$125.97

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Glasfloss 1" MERV 10 Replacement Air Filters for Carrier, Bryant, Payne.
Glasfloss 1" MERV 10 Replacement Air Filters for Carrier, Bryant, Payne.

$99.63

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12 Pack of Air Handler 21C056 MERV 7 Pleated Furnace Filter 6x16x1
12 Pack of Air Handler 21C056 MERV 7 Pleated Furnace Filter 6x16x1

$32.99

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(12) Orange / White MERV 8 Polyester Air Filter Pads Tackified CHOOSE SIZE
(12) Orange / White MERV 8 Polyester Air Filter Pads Tackified CHOOSE SIZE

$68.88

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Filter King 16x21x1 Air Filter 12-PACK MERV 8 Actual Size 15.5 x 20.5 x .75"
Filter King 16x21x1 Air Filter 12-PACK MERV 8 Actual Size 15.5 x 20.5 x .75"

$148.56

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Aerostar 16 1/4x21 1/2x1 MERV 13 Air Filter, 6 Pack (16 3/8" x 21 1/2" x 3/4")
Aerostar 16 1/4x21 1/2x1 MERV 13 Air Filter, 6 Pack (16 3/8" x 21 1/2" x 3/4")

$73.43

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated  Assorted Styles , Pattern Names
Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Assorted Styles , Pattern Names

$57.78

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(12 Pack) Blue / White Polyester Air Filter Pads CHOOSE SIZE
(12 Pack) Blue / White Polyester Air Filter Pads CHOOSE SIZE

$61.88

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21 1/2x23 5/16x1 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual ...
21 1/2x23 5/16x1 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual ...

$96.79

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(12) Green / White MERV 8 Polyester Air Filter Pads CHOOSE SIZE
(12) Green / White MERV 8 Polyester Air Filter Pads CHOOSE SIZE

$64.88

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Glasfloss 16x21x1 - MERV 10 (Qty:12) - Pleated AC Furnace Air Filter Made in USA
Glasfloss 16x21x1 - MERV 10 (Qty:12) - Pleated AC Furnace Air Filter Made in USA

$162.99

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Lennox X8790 - 20" x 21" x 5" MERV 16 Air Filter for PurAir PCO14-23
Lennox X8790 - 20" x 21" x 5" MERV 16 Air Filter for PurAir PCO14-23

$137.95

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Aerostar 16 3/8 x 21  1/2 x 1 MERV 11 Furnace Air Filter, 4 Pack
Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Furnace Air Filter, 4 Pack

$19.99

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"16 3/8 x 21 1/2 x 1 merv 8 pleated air filter, ac furnace air filter, 4 pack...
"16 3/8 x 21 1/2 x 1 merv 8 pleated air filter, ac furnace air filter, 4 pack...

$50.79

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True Blue 16 in. W X 20 in. H X 1 in. D Fiberglass 2 MERV Air Filter 1 pk
True Blue 16 in. W X 20 in. H X 1 in. D Fiberglass 2 MERV Air Filter 1 pk

$35.95

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Aerostar 16 1/4x21 1/2x1 MERV 13 Air Filter, 6 Pack (16 3/8" x 21 1/2" x 3/4")
Aerostar 16 1/4x21 1/2x1 MERV 13 Air Filter, 6 Pack (16 3/8" x 21 1/2" x 3/4")

$67.25

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Aerostar 21 1/2x23 5/16x1 MERV 8 Air Filter, 6 Pack (21 1/2" x 23 5/16" x 3/4")
Aerostar 21 1/2x23 5/16x1 MERV 8 Air Filter, 6 Pack (21 1/2" x 23 5/16" x 3/4")

$63.54

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Aerostar 16 3/8x21 1/2x1 MERV 11 Furnace Air Filter, 4 Pack
Aerostar 16 3/8x21 1/2x1 MERV 11 Furnace Air Filter, 4 Pack

$35.99

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16-3/8 x 21-1/2 x 1 Pads-N-Frame (12) HVAC Blue White Filters & (1) Frame
16-3/8 x 21-1/2 x 1 Pads-N-Frame (12) HVAC Blue White Filters & (1) Frame

$113.95

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"16 3/8 x 21 1/2 x 1 merv 8 pleated air filter, ac furnace air filter, 4 pack...
"16 3/8 x 21 1/2 x 1 merv 8 pleated air filter, ac furnace air filter, 4 pack...

$50.79

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New in Box 21-1/2x23-5/16x1 Carrier HVAC Size Air Filters Airflow box of 12
New in Box 21-1/2x23-5/16x1 Carrier HVAC Size Air Filters Airflow box of 12

$65.00

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Aerostar 16 1/4x21 1/2x1 MERV 8 Air Filter, 6 Pack (16 3/8" x 21 1/2" x 3/4")
Aerostar 16 1/4x21 1/2x1 MERV 8 Air Filter, 6 Pack (16 3/8" x 21 1/2" x 3/4")

$60.62

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20x22x1 (19_1/2x21_7/16) Pleated MERV 12 Air Filters 12 Pack
20x22x1 (19_1/2x21_7/16) Pleated MERV 12 Air Filters 12 Pack

$134.99

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 13 Pleated Air Filter, AC Furnace Air Filter,
Aerostar 16 3/8 x 21 1/2 x 1 MERV 13 Pleated Air Filter, AC Furnace Air Filter,

$89.00

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Aerostar 16 3/8x21 1/2x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, (P...
Aerostar 16 3/8x21 1/2x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, (P...

$45.20

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20x22x1 (19_1/2x21_7/16) Pleated Air Filters MERV 12 Plus Carbon 6 Pack
20x22x1 (19_1/2x21_7/16) Pleated Air Filters MERV 12 Plus Carbon 6 Pack

$114.99

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 6, 12PK
Aerostar 16 3/8 x 21 1/2 x 1 MERV 6, 12PK

$61.63

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16 3/8 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack ...
16 3/8 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack ...

$62.20

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Aerostar 16 3/8x21 1/2x1” MERV 11 Furnace Pleated Air Filter-4 Pack
Aerostar 16 3/8x21 1/2x1” MERV 11 Furnace Pleated Air Filter-4 Pack

$21.43

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Y6606 MERV 16 Filter Replacement 20 x 21 x 5 For PureAir PCO3-14-16 Air Purifier
Y6606 MERV 16 Filter Replacement 20 x 21 x 5 For PureAir PCO3-14-16 Air Purifier

$70.00

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Aerostar 21 1/2x23 5/16x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6...
Aerostar 21 1/2x23 5/16x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6...

$82.58

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Nordic Pure 20x22x1 (19_1/2x21_7/16) Pleated MERV 12 Air Filters 4 Pack
Nordic Pure 20x22x1 (19_1/2x21_7/16) Pleated MERV 12 Air Filters 4 Pack

$57.99

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1" Inch Glasfloss ZL MERV 10 Pleated Air Filters 16.5x21.5x1 12 PACK NIB
1" Inch Glasfloss ZL MERV 10 Pleated Air Filters 16.5x21.5x1 12 PACK NIB

$110.00

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LifeSupplyUSA (16x25x1) Aluminum Electrostatic Air Filter Replacement Washable
LifeSupplyUSA (16x25x1) Aluminum Electrostatic Air Filter Replacement Washable

$45.99

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20x22x1 (19_1/2x21_7/16) Pleated Air Filters MERV 12 Plus Carbon 4 Pack
20x22x1 (19_1/2x21_7/16) Pleated Air Filters MERV 12 Plus Carbon 4 Pack

$82.99

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20x22x1 (19_1/2x21_7/16) Pleated Air Filters MERV 12 Plus Carbon 12 Pack
20x22x1 (19_1/2x21_7/16) Pleated Air Filters MERV 12 Plus Carbon 12 Pack

$214.99

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Return air filter plenum, 16x20 with end cap, and round 12" collar , hvac duct
Return air filter plenum, 16x20 with end cap, and round 12" collar , hvac duct

$172.87

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16-3/8 x 21-1/2 x 1 Carrier Pads-N-Frame (12) MERV8 Orange Filters & (1) Frame
16-3/8 x 21-1/2 x 1 Carrier Pads-N-Frame (12) MERV8 Orange Filters & (1) Frame

$134.95

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(12) Orange/White Polyester Filter Pads 1" Poly MERV8 Tackified - CHOOSE SIZE
(12) Orange/White Polyester Filter Pads 1" Poly MERV8 Tackified - CHOOSE SIZE

$72.95

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Return air filter plenum, 20x16 with end cap, and round 12" collar , hvac duct
Return air filter plenum, 20x16 with end cap, and round 12" collar , hvac duct

$170.29

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Aerostar 16 3/8 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4
Aerostar 16 3/8 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4

$50.33

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16 3/8 x 21 1/2 x 1 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actu...
16 3/8 x 21 1/2 x 1 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actu...

$56.36

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NEW Glasfloss ZL  Air Filters for AC & Furnace.  Case of 10 21.5"X 23 5/16" X 1"
NEW Glasfloss ZL Air Filters for AC & Furnace. Case of 10 21.5"X 23 5/16" X 1"

$39.99

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Lot of 6 Aerostar Merv 8 Pleated Air Filters 21-1/2" x 23-5/16"x1" P80S.0121H23E
Lot of 6 Aerostar Merv 8 Pleated Air Filters 21-1/2" x 23-5/16"x1" P80S.0121H23E

$44.99

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20x22x1 (19_1/2x21_7/16) Pleated MERV 10 Air Filters 12 Pack
20x22x1 (19_1/2x21_7/16) Pleated MERV 10 Air Filters 12 Pack

$126.99

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20x22x1 (19_1/2x21_7/16) Pleated MERV 8 Air Filters 12 Pack
20x22x1 (19_1/2x21_7/16) Pleated MERV 8 Air Filters 12 Pack

$124.99

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16 3/8 x 21 1/2 x 1 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actu...
16 3/8 x 21 1/2 x 1 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actu...

$56.36

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Aerostar 19 7/8X21 1/2X1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 12 Pa
Aerostar 19 7/8X21 1/2X1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 12 Pa

$168.92

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Filters Now.Com FD16X21A-12 Accumulair Diamond Air Filter, 16 x 21 x 1-in,
Filters Now.Com FD16X21A-12 Accumulair Diamond Air Filter, 16 x 21 x 1-in,

$197.87

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Filter King 16x21x2 Air Filter 12-PACK MERV 8 Actual Size 16 x 21 x 1.75"
Filter King 16x21x2 Air Filter 12-PACK MERV 8 Actual Size 16 x 21 x 1.75"

$159.28

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Aerostar 21 1/2x23 5/16x1 MERV 11 Furnace Air Filter, 12 Pack
Aerostar 21 1/2x23 5/16x1 MERV 11 Furnace Air Filter, 12 Pack

$123.69

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