Article: Literature.

Ultraviolet systems

A brochure describes ultraviolet systems for disinfection, oxidation, reverse osmosis, ultrafiltration, deionization and other processes. Ultra Dynamics, Colmar, Pa.

Circle No. 390

Metering pumps

EV Series metering pumps and optional equipment are profiled in a brochure. Also included is a detailed application guide.

Durameter Pump Co., Buffalo, N.Y.

Circle No. 391

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