We use cookies to make your experience better.

Shop By Department

Refrigerator Filters
Whole House Filtration
Air Filters
Water Filters
Pool & Spa Filters
Parts & Accessories
Brands

Search

Search

Log In
Register

Discount Water Filters and Air Filters at Discount Filter Store.com

My Cart Checkout

Search

Search

Refrigerator Filters
Whole House Filtration
Air Filters
Water Filters
Pool & Spa Filters
Parts & Accessories
Brands

Refrigerator Filters
Whole House Filtration
Air Filters
Water Filters
Pool & Spa Filters
Parts & Accessories
Top Brands
Resources

Log In
Register

Free Shipping on Orders Over $59* | Easy Returns | No Worries Guarantee | Contact Us | 1-800-277-3458

Refrigerator Filters
Whole House Filtration
Air Filters
Water Filters
Pool & Spa Filters
Parts & Accessories
Top Brands
Resources

Refrigerator Filters
Whole House Filtration
Air Filters
Water Filters
Pool & Spa Filters
Parts & Accessories
Brands

Skip to Content

Home
Whole House Filtration
Whole House Water Filter Replacements
Replacement Filters by Size
20 x 4.5 Inch Replacement Filters
20 x 4.5 Inch Carbon Filters

20 x 4.5 Inch Carbon Filters

28 Products found

Sort By : Set Descending Direction

Page

You're currently reading page 1
Page 2
Page 3
Page Next

Show

View as Grid List

MAXETW-FF20 Watts C-MAX Whole House Water Filter Cartridge

Price $162.99 List Price Price $232.99 Save 30%
Free Shipping
1 Pack Selected

1 Pack - $162.99
($162.99 per filter)
CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

Price $82.99 List Price Price $118.99 Save 30%
Free Shipping
1 Pack Selected

1 Pack - $82.99
($82.99 per filter)

6 Pack - $448.14
($74.69 per filter)
CRFC-20BB Pentek Chloramine Reduction Water Filter

Price $205.99 List Price Price $293.99 Save 29%
Free Shipping
1 Pack Selected

1 Pack - $205.99
($205.99 per filter)
EP-20BB Pentek Replacement Filter Cartridge

Price $88.99 List Price Price $126.99 Save 29%
Free Shipping
1 Pack Selected

1 Pack - $88.99
($88.99 per filter)

6 Pack - $480.54
($80.09 per filter)

12 Pack - $800.88
($66.74 per filter)
USWF Coconut Carbon Block Filter 0.5 Micron 20"x4.5"

Price $57.71 List Price Price $83.64 Save 31%
1 Pack Selected

1 Pack - $57.71
($57.71 per filter)

3 Pack - $162.90
($54.30 per filter)

4 Pack - $214.04
($53.51 per filter)

6 Pack - $311.64
($51.94 per filter)

12 Pack - $519.36
($43.28 per filter)

25 Pack - $1,010.00
($40.40 per filter)
EPM-20BB Pentek Comparable Whole House Water Filter by Tier1

Price $48.99 List Price Price $69.99 Save 30%
1 Pack Selected

1 Pack - $48.99
($48.99 per filter)

2 Pack - $95.04
($47.52 per filter)

3 Pack - $138.27
($46.09 per filter)
USWF Coconut Carbon Block Filter 5 Micron 20"x4.5"

Price $46.56 List Price Price $67.47 Save 30%
1 Pack Selected

1 Pack - $46.56
($46.56 per filter)

3 Pack - $131.40
($43.80 per filter)

4 Pack - $172.68
($43.17 per filter)

6 Pack - $251.40
($41.90 per filter)

12 Pack - $419.04
($34.92 per filter)

25 Pack - $814.75
($32.59 per filter)
USWF Chloramine Reducing Filter Catalytic Carbon Block 1 Micron 20"x4.5"

Price $89.24 List Price Price $129.33 Save 30%
Free Shipping
1 Pack Selected

1 Pack - $89.24
($89.24 per filter)

3 Pack - $251.88
($83.96 per filter)

4 Pack - $331.00
($82.75 per filter)

6 Pack - $481.86
($80.31 per filter)

12 Pack - $803.16
($66.93 per filter)

25 Pack - $1,561.50
($62.46 per filter)
USWF Lead Reducing Carbon Block Filter 0.5 Micron 20"x4.5"

Price $68.87 List Price Price $99.80 Save 30%
Free Shipping
1 Pack Selected

1 Pack - $68.87
($68.87 per filter)

3 Pack - $194.40
($64.80 per filter)

4 Pack - $255.44
($63.86 per filter)

6 Pack - $371.88
($61.98 per filter)

12 Pack - $619.80
($51.65 per filter)

25 Pack - $1,205.25
($48.21 per filter)
CBC-20BB Pentek Replacement Filter Cartridge by Tier1

Price $80.99 List Price Price $115.99 Save 30%
Free Shipping
1 Pack Selected

1 Pack - $80.99
($80.99 per filter)

2 Pack - $157.12
($78.56 per filter)

3 Pack - $228.60
($76.20 per filter)
EPM-20BB Pentek Whole House Filter Replacement Cartridge

Price $81.99 List Price Price $116.99 Save 29%
Free Shipping
1 Pack Selected

1 Pack - $81.99
($81.99 per filter)

6 Pack - $442.74
($73.79 per filter)
FLOPLUS-20BB Pentek Replacement Filter Cartridge

Price $122.99 List Price Price $175.99 Save 30%
Free Shipping
1 Pack Selected

1 Pack - $122.99
($122.99 per filter)

28 Products found

Sort By : Set Descending Direction

Page

You're currently reading page 1
Page 2
Page 3
Page Next

Show

View as Grid List

Shop By

Shopping Options

Contaminant Issues

Chlorine 26 items
Chloramines 1 item
Lead 1 item
Sediment 17 items
VOCs 5 items

Primary Filter Media

Activated Carbon Block 15 items
Carbon-Impregnated Polyester 1 item
Granular Activated Carbon 8 items
GAC with KDF 85 1 item

Brand

American Plumber 1 item
Aqua-Pure 1 item
Hydronix 2 items
KX Matrikx 1 item
Pentek 9 items
Tier1 8 items
USWF 4 items
Viqua 1 item
Watts 1 item

Price

$0.00 - $99.99 18 items
$100.00 - $199.99 8 items
$200.00 - $299.99 2 items

Media Type

Carbon Filter 27 items

Advertised Size (in)

20 x 4-1/2 28 items

Micron Rating (Nominal)

0⋅5 5 items
1 1 item
5 7 items
10 7 items
20 2 items
25 5 items

Filter Life (months)

3 months 1 item
6 months 25 items
12 months 1 item

Filter Life (gallons)

1,000 - 2,500 3 items
25,000 - 50,000 8 items
50,000 and up 7 items

Flow Rate (gpm)

0.5 - 1.0 1 item
1.5 - 2.0 3 items
2.5 - 5.0 13 items
5.0 - 10.0 7 items
10.0 - 20.0 1 item
20.0 - 50.0 1 item

Customer Service

Help / FAQ
Shipping Policy
Return Policy
Privacy Policy
Fridge Filter Buying Guide

My Account

Sign In / Register
My Account
View Cart
Order History
Order Status

Information

Site Map
Everything Guide to Filters
Everything: Hard Water
Terms & Conditions
Auto-Ship Program
Affiliate Program

Company

About Us
Contact Us

Order Toll-Free

1-800-277-3458
(M - F, 8am - 5pm CST)
(Closed W, 10am - 11:00am CST)
Se Habla Espanol

© 2023 DiscountFilterStore.com. All Rights Reserved Worldwide. Spend less, get more... Discount Filter Store