WaterClue is reader-supported. As an Amazon Associate we earn from qualifying purchases. Amazon prices and product images are sourced live from the Amazon Product Advertising API and may not reflect current Amazon listings — confirm price and availability at Amazon before purchase. Full affiliate disclosure.

ZeroWater 20 oz Stainless Steel Filtered Water Bottle

Model ZB-20SS
4.2/5 from 1,847 ratings
from Check current price
Price via Amazon
Check Price on Amazon
Free shipping with Amazon Prime · 30-day returns
Lid
Bite-valve drinking cap
Capacity
20 oz (0.59 liters)
Material
18/8 stainless steel (BPA-free)
Warranty
1 year
Tds Meter
Included
Dishwasher
Top-rack safe (filter removed)

ZeroWater 20 oz Stainless Steel Filtered Water Bottle Review

The ZeroWater ZB-20SS applies the same 5-stage ion exchange filtration technology used in the brand's countertop pitchers to a 20-ounce double-wall stainless steel bottle. The filter removes dissolved solids -- including heavy metals, lead, chromium, and total dissolved solids (TDS) -- to a measured 0 PPM at the point of sip, certified under NSF/ANSI 42 and 53. Each filter is rated for approximately 15-20 gallons before TDS readings begin to rise above zero; the included TDS meter lets users measure when to replace. The stainless construction is BPA-free and maintains cold water temperature for several hours without vacuum insulation. The bottle uses the same replacement filter (ZR-001) compatible with all ZeroWater pitchers, simplifying replacement ordering for existing ZeroWater pitcher households. The filter lid screws into the bottle body and the bite valve opens for drinking without tilting. Both the bottle body and filter housing are dishwasher-safe on the top rack when the filter element is removed.
Pros
  • 5-stage ion exchange filter reduces TDS to 0 PPM -- strongest filtration of any bottle on this page
  • TDS meter included to confirm filter performance and replacement timing
  • Same ZR-001 replacement filter used in ZeroWater pitchers -- one SKU for whole household
  • NSF 42 and 53 dual-certified
Cons
  • Filter life of 15-20 gallons is shorter than carbon-only competitors (Brita Sport 40 gallons)
  • 5-stage filter reduces flow rate -- requires a slow steady draw vs. free-flow drinking
  • No vacuum insulation -- does not keep water cold for extended periods

Full Specifications

Brand
ZeroWater
Model Number
ZB-20SS
Lid
Bite-valve drinking cap
Capacity
20 oz (0.59 liters)
Material
18/8 stainless steel (BPA-free)
Warranty
1 year
Tds Meter
Included
Dishwasher
Top-rack safe (filter removed)
Insulation
Double-wall (no vacuum -- moderate temp retention)
Filter Life
15-20 gallons (TDS meter included)
Filter Stages
5-stage ion exchange
Certifications
NSF/ANSI 42, NSF/ANSI 53

Similar Water Bottles

Clearly Filtered

Clearly Filtered 24 oz Filtered Water Bottle

Twist-to-lock straw lid 24 oz (0.71 liters) BPA/BPS-free Tritan copolyester
Check current price
4.5
View Details
Brita

Brita Premium 20 oz Filtered Stainless Steel Water Bottle

Leak-proof screw-top with carry loop Multiple (stainless, black, navy) 20 oz (0.59 liters)
Check current price
4.4
View Details
Brita

Brita Sport 26 oz Filtered Water Bottle

Bite-valve sports lid Multiple (blue, green, pink, black) 26 oz (0.77 liters)
Check current price
4.3
View Details