Compare Whole-House Water Filters

Closely matched whole-house water filters side by side, 45 pairs in all. Each pair is scored the same way, with the independent tests and specs that separate them. See the full ranking.

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FirstChoose a product…3M Aqua-Pure AP903 – $422.993M Aqua-Pure AP904 – $421.18Express Water Essential Pro WH300SCGS-S – $469.99GE GXWH40L – $69.85Home Master HMF2SmgCC – $375.68iSpring WGB21B – $155.99iSpring WGB21B-PB – $230.99iSpring WGB22B – $286.70iSpring WGB32B – $420iSpring WGB32B-KSNC – $639.99Pentair Pentek FloPlus Protect 20BB – $258Waterdrop WHF21-PG – $106.98Waterdrop WHF3T-PG – $269.99A. O. Smith AO-WH-FILTER – $399Aquasana Rhino Max Flow with UV – $2,246.99Aquasana Rhino WH-1000 – $999iSpring WF1054 – $1,417.99iSpring WF150K – $1,673.70LiquaGen FK-CAT 10x54 – $849.99vsSecondChoose a product…3M Aqua-Pure AP903 – $422.993M Aqua-Pure AP904 – $421.18Express Water Essential Pro WH300SCGS-S – $469.99GE GXWH40L – $69.85Home Master HMF2SmgCC – $375.68iSpring WGB21B – $155.99iSpring WGB21B-PB – $230.99iSpring WGB22B – $286.70iSpring WGB32B – $420iSpring WGB32B-KSNC – $639.99Pentair Pentek FloPlus Protect 20BB – $258Waterdrop WHF21-PG – $106.98Waterdrop WHF3T-PG – $269.99A. O. Smith AO-WH-FILTER – $399Aquasana Rhino Max Flow with UV – $2,246.99Aquasana Rhino WH-1000 – $999iSpring WF1054 – $1,417.99iSpring WF150K – $1,673.70LiquaGen FK-CAT 10x54 – $849.99Compare

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• Cartridge 31
• Tank 12
• Across builds 2

Best Whole-House Cartridge Water Filters

• iSpring WGB21B vs Waterdrop WHF21-PG
• iSpring WGB22B vs Waterdrop WHF3T-PG
• GE GXWH40L vs Waterdrop WHF21-PG
• 3M Aqua-Pure AP903 vs iSpring WGB22B
• 3M Aqua-Pure AP903 vs 3M Aqua-Pure AP904
• 3M Aqua-Pure AP904 vs iSpring WGB22B
• GE GXWH40L vs iSpring WGB21B
• iSpring WGB21B-PB vs Waterdrop WHF21-PG
• 3M Aqua-Pure AP903 vs iSpring WGB32B
• iSpring WGB22B vs iSpring WGB32B
• iSpring WGB21B vs iSpring WGB21B-PB
• 3M Aqua-Pure AP903 vs iSpring WGB32B-KSNC
• 3M Aqua-Pure AP904 vs iSpring WGB32B
• 3M Aqua-Pure AP904 vs iSpring WGB32B-KSNC
• iSpring WGB21B-PB vs Waterdrop WHF3T-PG
• 3M Aqua-Pure AP903 vs Express Water Essential Pro WH300SCGS-S
• Express Water Essential Pro WH300SCGS-S vs iSpring WGB22B
• 3M Aqua-Pure AP904 vs Express Water Essential Pro WH300SCGS-S
• iSpring WGB32B vs iSpring WGB32B-KSNC
• Home Master HMF2SmgCC vs iSpring WGB21B
• Express Water Essential Pro WH300SCGS-S vs iSpring WGB32B
• GE GXWH40L vs iSpring WGB21B-PB
• 3M Aqua-Pure AP903 vs Home Master HMF2SmgCC
• Home Master HMF2SmgCC vs iSpring WGB22B
• Express Water Essential Pro WH300SCGS-S vs iSpring WGB32B-KSNC
• 3M Aqua-Pure AP904 vs Home Master HMF2SmgCC
• iSpring WGB21B vs Pentair Pentek FloPlus Protect 20BB
• Pentair Pentek FloPlus Protect 20BB vs Waterdrop WHF3T-PG
• Home Master HMF2SmgCC vs iSpring WGB21B-PB
• GE GXWH40L vs Pentair Pentek FloPlus Protect 20BB
• iSpring WGB21B-PB vs Pentair Pentek FloPlus Protect 20BB

Best Whole-House Tank Water Filters

• A. O. Smith AO-WH-FILTER vs Aquasana Rhino WH-1000
• A. O. Smith AO-WH-FILTER vs Aquasana Rhino Max Flow with UV
• Aquasana Rhino WH-1000 vs iSpring WF150K
• A. O. Smith AO-WH-FILTER vs LiquaGen FK-CAT 10x54
• Aquasana Rhino Max Flow with UV vs Aquasana Rhino WH-1000
• Aquasana Rhino Max Flow with UV vs iSpring WF150K
• Aquasana Rhino WH-1000 vs LiquaGen FK-CAT 10x54
• iSpring WF150K vs LiquaGen FK-CAT 10x54
• Aquasana Rhino WH-1000 vs iSpring WF1054
• Aquasana Rhino Max Flow with UV vs LiquaGen FK-CAT 10x54
• Aquasana Rhino Max Flow with UV vs iSpring WF1054
• iSpring WF1054 vs LiquaGen FK-CAT 10x54

Across builds

• 3M Aqua-Pure AP903 vs Aquasana Rhino WH-1000
• 3M Aqua-Pure AP903 vs Aquasana Rhino Max Flow with UV