A new tri-fold brochure compares the maintenance costs and energy-savings costs of a typical single-screw compressor versus a twin-screw compressor. The comparison chart explains how, over a 15-year period, the reduced number of components in the single-screw compressor saves on overall maintenance and replacement parts. It has a detailed, side-by-side comparison of typical energy savings of a single-screw compressor versus a twin-screw compressor.

Vilter Manufacturing Corp., 5555 South Packard Ave., Cudahy, WI 53110; 414-744-0111; 414-744-3483 (fax); www.vilter.com.