NSF Product and Service Listings

[1] Conforms to material requirements only.
[2] For all trade names: GW may be followed by a hyphen and letter and number combination. 
    The letters indicate the treatment process used and the numbers indicate carbon mesh
    sizes.
[3] For all trade names: PGW may be followed by number and letters combination. The letters
    indicate the treatment process used and the numbers indicate carbon mesh sizes.
[4] This product is Certified for a maximum use level of 0 mg/L.  This mixture has been
    reviewed for material safety only.  Should this mixture be used as a part of a system or
    component such as a carbon block, a review will be required to determine if testing will
    be required for the processor (extrusion) of the carbon block to ensure that
    contaminants are not introduced during the extrusion process.
[5] The carbon source is coconut shell.  Certified for the follwing particle sizes: 6x12,
    16x35, 48x100, 60x150, 80x180 mesh and 20µm, 100µm, 120µm and 150µm.
[6] The carbon source is coal.  Certified for the following particle sizes (mm) :
    PKC-20MP   :   0.03 x 0.01
    PKC-150MP :   0.17 x 0.12

[1] Conforms to material requirements only.
[2] For all trade names: GW may be followed by a hyphen and/or letter and number
    combinations.  The numbers indicate carbon mesh sizes.  The letters between the GW and
    the mesh size indicate the treatment process used.