• Highlight: Ametek 11675813 is a 2-stage 5.7" 120V bypass motor with peripheral discharge and QS (Quiet Series) construction — Ametek's quieter variant for noise-sensitive applications.
• Best For: In-suite hospitality housekeeping vacuums, hospital and library central-vac systems, and school equipment where sound rating drives the procurement spec.
• Expert Note: Peripheral discharge spreads the exhaust around the full motor circumference rather than venting through one tangent — this is the geometry change that makes the QS variants measurably quieter than the standard tangential-discharge equivalents.
