Tetra Technologies, Inc.
Celatom FW 60 Diatomaceous Earth (DE)
Celatom FW 60 diatomaceous earth is a general purpose brine filter aid. It has a relatively coarse particle size (median particle diameter 48 microns) and is used in routine filtration operations.

Celatom FW 20 Diatomaceous Earth (DE)
Celatom FW 20 diatomaceous earth has a slightly smaller particle size (median particle diameter 33 microns) and slightly lower permeability than Celatom FW 60 diatomaceous earth. It is used in applications where clarity is of the utmost importance and the additional head loss can be tolerated.

TETRA C2 Pleated Cellulose Filtration Cartridges
Pleated cellulosic filtration cartridges (PCCs) are of a fixed pore construction of high quality cellulosic fibers bonded with phenolic resin. The PCCs are recommended for completion, workover, and stimulation operations, as well as for diatomaceous earth (DE) guard filtration. These cartridges have a beta ratio of 1000 at two microns. (See "Filter Rating Systems.")

TETRA PP2 Pleated Polypropylene Filtration Cartridges
Pleated polypropylene filtration cartridges (PPCs) are made from pure polypropylene. The PPCs are recommended for completion, workover, and stimulation operations, as well as for diatomaceous earth (DE) guard filtration. PP2 cartridges have a beta ratio of 100 at two microns. (See "Filter Rating Systems.")

Resin Bonded Filtration Cartridges
Resin bonded filtration cartridges (RBCs) are long life, nominally rated, filter elements that are especially suited to viscous liquids and high flow rate applications. The RBCs are recommended for completion, workover, and stimulation operations, as well as for diatomaceous earth (DE) guard filtration.
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Barry Donaldson
Global Vice President Sales & Marketing
Phone: 281.364.2254
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Joey Detiveaux
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Phone: 281.364.2204
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