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  Water Filters Home > Whole House > 20 Inch Big Blue Replacement Filters

20 Inch x 4.5 Inch Replacement Water Filters

Used in Whole House Systems, Commercial Filter Systems, and many other Water Filter Systems

Whole House 20 inch Heavy-Duty Big Blue Whole House Water Filtration System




Sediment Filtration Replacement Water Filters (Approximately 20" x 4.5")




CP5-20BB Pleated Cellulose Polyester Water Filter - 5 micron; 20'' x 4.5''
Discontinued. ECP5-20BB is the recommended replacement filter.



DGD-2501-20 Polypropylene Dual-Gradient Density Water Filter - 25/1 micron; 20'' x 4.5''
Product Code: DGD-2501-20 - Individually Priced At: $29.99 (Bulk Pricing: $19.99 each)



DGD-5005-20 Polypropylene Dual-Gradient Density Water Filter - 50/5 micron; 20'' x 4.5''
Product Code: DGD-5005-20 - Individually Priced At: $29.99 (Bulk Pricing: $19.99 each)



DGD-7525-20 Polypropylene Dual-Gradient Density Water Filter - 75/25 micron; 20'' x 4.5''
Product Code: DGD-7525-20 - Individually Priced At: $29.99 (Bulk Pricing: $19.99 each)



ECP1-20BB Pleated Cellulose Polyester Water Filter - 1 micron; 20'' x 4.5''
Product Code: ECP1-20BB - Individually Priced At: $28.99 (Bulk Pricing: $24.99 each)



ECP5-20BB Pleated Cellulose Polyester Water Filter - 5 micron; 20'' x 4.5''
Product Code: ECP5-20BB - Individually Priced At: $26.99 (Bulk Pricing: $20.99 each)



ECP20-20BB Pleated Cellulose Polyester Water Filter - 20 micron; 20'' x 4.5''
Product Code: ECP20-20BB - Individually Priced At: $28.99 (Bulk Pricing $24.99 each)



ECP50-20BB Pleated Cellulose Polyester Water Filter - 50 micron; 20'' x 4.5''; 6 filters per case
Product Code: ECP50-20BB - 1 Case ECP50-20BB for $134.94 (6 filters for $22.49 each)



R30-20BB Pleated Polyester Water Filter - 30 micron; 20'' x 4.5''
Product Code: R30-20BB - Individually Priced At: $32.99 (Bulk Pricing: $24.99 each)



S1-20BB Pleated Cellulose Water Filter - 20 micron; 20'' x 4.5''
Product Code: S1-20BB - Individually Priced At: $19.99 (Bulk Pricing: $13.99 each)



WP1BB20P Polypropylene String-Wound Water Filter - 1 micron; 20'' x 4.5''; 6 filters per case
Product Code: WP1BB20P - 1 Case WP1BB20P for $239.94 (6 filters for $39.99 each)



WP5BB20P Polypropylene String-Wound Water Filter - 5 micron; 20'' x 4.5''; 6 filters per case
Product Code: WP5BB20P - 1 Case WP5BB20P for $221.94 (6 filters for $36.99 each)



WP25BB20P Polypropylene String-Wound Water Filter - 25 micron; 20'' x 4.5''; 6 filters per case
Product Code: WP25BB20P - 1 Case WP25BB20P for $215.94 (6 filters for $35.99 each)



WPX100BB20P Polypropylene String-Wound Water Filter - 100 micron; 20'' x 4.5''; 6 filters per case
Product Code: WPX100BB20P - 1 Case WPX100BB20P for $167.94 (6 filters for $27.99 each)




Carbon Replacement Water Filters (Approximately 20" x 4.5")




C1-20BB Carbon Cellulose Water Filter - 5 micron; 20'' x 4.5''
Discontinued. EP-20BB is the recommended replacement filter.



CBC-20BB Carbon Briquette Water Filter - 0.5 micron; 20'' x 4-5/8''
Product Code: CBC-20BB - Individually Priced At: $79.49 (Bulk Pricing: $69.99 each)



CBR2-20BB Carbon Block Water Filter - 0.5 micron; 20'' x 4-5/8''
Discontinued. 06-425-200-20 is the recommended replacement filter.



CEP-20EBB Thin Wall Coconut Carbon Block - 10 micron; 20'' x 4.5''
Discontinued. EP-20BB is the recommended replacement filter.



EP-20BB Carbon Briquette Water Filter - 5 micron; 20'' x 4-5/8''
Product Code: EP-20BB - Individually Priced At: $49.99 (Bulk Pricing: $39.99 each)



EPM-20BB Carbon Briquette Water Filter - 10 micron; 20'' x 4-5/8''
Product Code: EPM-20BB - Individually Priced At: $42.99 (Bulk Pricing $35.99 each)



FloPlus-20BB High Flow Carbon Block Cyst Reduction Filter - 0.5 micron; 20" x 4-5/8" W"
Product Code: FloPlus-20BB - Individually Priced At: $94.99 (Bulk Pricing: $84.99 each)



GAC20-BB Granular Activated Carbon Water Filter - 20 micron; 20'' x 4.5''
Product Code: GAC20-BB - Individually Priced At: $52.99 (Bulk Pricing: $39.99 each)



NCP-20BB Non-Cellulose Pleated Water Filter - 10 micron; 20'' x 4.5''
Product Code: NCP-20BB - Individually Priced At: $39.99 (Bulk Pricing: $32.99 each)



RFC-20BB Radial Flow Carbon Water Filter - 25 micron; 20'' x 4.5''
Product Code: RFC-20BB - Individually Priced At: $63.94 (Bulk Pricing: $52.49 each)




Specialty Replacement Water Filters (Approximately 20" x 4.5")




BBF1-20MB Mixed Bed Deionization Water Filter - 20" x 4.5" (508 mm x 114 mm)
Product Code: BBF1-20MB - Individually Priced At: $106.99 (Bulk Pricing: $99.99 each)



CRFC-20BB Chloramine Reduction Water Filter - 20'' x 4.5'' (508 mm x 114 mm)
Product Code: CRFC-20BB - Individually Priced At: $134.99 (Bulk Pricing: $124.99 each)



ECW-20BB-WF Empty Refillable Cartridge - 20" x 4-1/2"
Product Code: ECW-20BB-WF - Individually Priced At: $18.99 (Bulk Pricing: $16.99 each)



KDF55-20BB-WF KDF-55 Heavy Metal and Bacteria Reduction - 20" x 4-1/2"
Product Code: KDF55-20BB-WF - Individually Priced At: $59.99 (Bulk Pricing: $53.99 each)



KDF85-20BB-WF KDF-85 Iron and Hydrogen Sulfide Reduction - 20" x 4-1/2"
Product Code: KDF85-20BB-WF - Individually Priced At: $129.99 (Bulk Pricing: $125.99 each)



OAC-20BB Oil Adsorbing Water Filter - 20.125" x 4.5''; 6 filters per case
Product Code: OAC-20BB - 1 Case OAC-20BB for $539.94 (6 filters for $89.99 each)



PCC-106 Hexametaphosphate Crystal Water Filter Insert - 5-7/16" x 1-1/16"; 24 filter inserts per case
Product Code: PCC-106 - Individually Priced At: $8.13



RFFE20-BB Radial Flow Iron Reduction Water Filter - 20'' x 4.5''
Product Code: RFFE20-BB - Individually Priced At: $91.00 (Bulk Pricing: $79.99 each)



WS-20BB Water Softener Water Filter - 20" x 4.5" (508 mm x 114 mm)
Product Code: WS-20BB - Individually Priced At: $52.99 (Bulk Pricing: $42.99 each)