Language
Default Store View
Toggle Nav
  • Compare Products
Toggle Nav
Water Quantity
Free Shipping
Support
Menu
Account
Settings
Language
Default Store View
My Cart

4½" x 20" Replacement Filter Cartridges

View as Grid List

Items 1-12 of 40

Position Product Name Price UPC
  1. WECO LOTUS-SET-3 Pre-Filter Set for LOTUS RO Systems
    WECO LOTUS-SET-3 Pre-Filter Set for LOTUS RO Systems
    SKU#:LOTUS-SET3
    Price: $92.42
  2. Selective Boron Reduction Cartridge 4.5" x 20" for Standard 4520 Housings
    Selective Boron Reduction Cartridge 4.5" x 20" for Standard 4520 Housings
    SKU#:BSRX-2045
    Price: $890.13
  3. WECO P2MPLWCT4520 Pleated Polyester 0.2 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    WECO P2MPLWCT4520 Pleated Polyester 0.2 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    SKU#:P2MPLWCT4520
    Price: $299.13 As low as Price: $269.22

¡Hablamos Español!

Ask a Certified Water Specialist
1 (888) 675-5187
  1. WECO 10MPLWCT4520 Pleated Polyester 10 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    WECO 10MPLWCT4520 Pleated Polyester 10 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    SKU#:10MPLWCT4520
    Price: $37.02 As low as Price: $34.43
  2. Empty Refillable Cartridge 4.5" x 20" for Big Blue 20" Housings
    Empty Refillable Cartridge 4.5" x 20" for Big Blue 20" Housings
    SKU#:EC2045W
    Price: $24.80 As low as Price: $22.32
  3. Big Blue 4.5" x 20" Carbon Block 0.5 Micron Water Filter Cartridge for Chloramine Reduction
    Big Blue 4.5" x 20" Carbon Block 0.5 Micron Water Filter Cartridge for Chloramine Reduction
    SKU#:CBCM-4520-0.5
    Price: $101.87 As low as Price: $91.68
  4. WECO 1MPLWCT4520 Pleated Polyester 1 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    WECO 1MPLWCT4520 Pleated Polyester 1 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    SKU#:1MPLWCT4520
    Price: $41.45 As low as Price: $38.55
  5. Big Blue 4.5" x 20" Carbon Block 0.5 Micron Water Filter Cartridge for Lead Reduction
    Big Blue 4.5" x 20" Carbon Block 0.5 Micron Water Filter Cartridge for Lead Reduction
    SKU#:CBPB-4520-0.5
    Rating:
    100%
    1  Review
    Price: $94.45 As low as Price: $85.01
  6. Pentair Sediment Bag Cartridge 4" x 18" 5 Micron
    Pentair Sediment Bag Cartridge 4" x 18" 5 Micron
    SKU#:BP-420-5
    Price: $19.20 As low as Price: $18.24
  7. WECO 20MPLWCT4520 Pleated Polyester 20 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    WECO 20MPLWCT4520 Pleated Polyester 20 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    SKU#:20MPLWCT4520
    Price: $45.48 As low as Price: $42.30
  8. WECO 50MPLWCT4520 Pleated Polyester 50 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    WECO 50MPLWCT4520 Pleated Polyester 50 Micron 4½" X 20" Sediment Filter Cartridge for Particulate Filtration - Made in U.S.A.
    SKU#:50MPLWCT4520
    Price: $54.30 As low as Price: $50.50
  9. UVX 3 Stage Replacement Cartridge Set for UVX320 Whole House Water Filtration System
    UVX 3 Stage Replacement Cartridge Set for UVX320 Whole House Water Filtration System
    SKU#:UVX-RL3ST5
    Price: $132.20
Page
Compare Products
  1. Delete
Compare
Clear All
You have no items to compare.
My Wish List
Last Added Items
  1. Delete

     

    Add to Cart
     
Go to Wish List
You have no items in your wish list.

Latest Blog Posts