Replaces many Trane, American Standard OEM compressors. Designed with large internal open area to reduce liquid hammering. Entirely suction cooled, no external cooling required. Built for long lasting, transient tolerant performance. Tripod mount on 1, 2 cylinder models. 9.7" square mount 4 cylinder MTZ100 and larger. Rotolock connections; sweat spuds provided. Run capacitor required for single phase models, not provided.