NSF 42
Covers Look and Taste
What It Protects Against:
- •Chlorine, Taste and Odor
- •Particulate Class I†
NSF 53
Covers Health Effects
What It Protects Against:
- •Lead & Other Heavy Metals
- •Asbestos
- •Industrial Chemicals
NSF 401
Covers Emerging Contaminants
What It Protects Against:
- •Pesticides
- •Herbicides
- •Pharmaceuticals