Brands

65 brands · 215 models · 33 with a full review. Prices checked Oct 16, 2026.

#2 brands

4Patriots
1 model

Gravity filters

A7 brands

5 models

Under-sink 3 · RO 1 · Whole house 1

Aarke
2 models

Pitchers

3 models

RO 2 · Countertop RO 1

10 models

Under-sink 2 · RO 1 · Whole house 3 · Well 1 · Shower 1 · Countertop 1 · Water softeners 1

4 models

RO 1 · Shower 1 · Countertop 2

B8 brands

Blu Technology
1 model

RV water filters

Bluevua
2 models

Countertop RO systems

Bosch
2 models

Refrigerator filters

Brio
4 models

Under-sink 2 · RO 2

5 models

Pitchers 2 · Faucet 2 · Filter bottles 1

Brondell
6 models

Under-sink 1 · RO 2 · Shower 2 · Countertop 1

C6 brands

Camco
1 model

RV water filters

Canopy
1 model

Shower filters

Clear2O
1 model

RV water filters

4 models

Under-sink 1 · Pitchers 1 · Filter bottles 1 · Refrigerator filters 1

4 models

RO 2 · Countertop RO 2

3 models

Gravity 2 · Faucet 1

D1 brand

3 models

Under-sink 1 · Gravity 2

E5 brands

Echo
1 model

Hydrogen water bottles

everydrop
4 models

Refrigerator filters

F2 brands

Frigidaire
4 models

Refrigerator filters

Frizzlife
4 models

Under-sink 2 · RO 1 · Countertop 1

G2 brands

GE
3 models

Refrigerator filters

GlacierFresh
9 models

Refrigerator filters

H2 brands

I1 brand

J1 brand

K2 brands

Kohler
6 models

Under-sink 3 · RO 1 · Shower 2

Kohree
1 model

RV water filters

L3 brands

LG
3 models

Refrigerator filters

O1 brand

Ocemida
2 models

Hydrogen water bottles

P5 brands

5 models

Under-sink 2 · RO 2 · Whole house 1

Piurify
2 models

Hydrogen water bottles

ProOne
1 model

Gravity filters

3 models

Pitchers 1 · Faucet 2

PURA
1 model

UV systems

R1 brand

S7 brands

Safe Home
1 model

Water tests

Samsung
3 models

Refrigerator filters

Santevia
4 models

Shower 1 · Pitchers 1 · Gravity 2

2 models

RO 1 · Countertop RO 1

SoftPro
4 models

Iron filters 1 · Sediment filters 1 · Water softeners 2

5 models

Whole house 2 · Well 1 · Water softeners 2

T1 brand

U1 brand

US Water Systems
7 models

Iron filters 3 · Sediment filters 1 · UV systems 1 · Water softeners 2

V2 brands

Varify
1 model

Water tests

VIQUA
2 models

UV systems

W4 brands

WaterCheck
1 model

Water tests

12 models

Under-sink 2 · RO 2 · Pitchers 1 · Countertop 1 · Countertop RO 1 · Gravity 1 · RV water filters 1 · Sediment filters 1 · Refrigerator filters 2

Watersafe
1 model

Water tests

Z1 brand