Filter Gravel
Filter sand size, angularity and hardness are the important filter sand characteristics to ensure proper filtering. Products meet or exceed the NSF/ANSI Standard 61 for Drinking Water System Components, as well as AWWA Standard B100-01. Physical Specifications. Effective Sizes: 1/8″ – 2 1/2″. Uniform Coefficient: 1.2 – 1.7. Specific ...
