Standard-size unit. Allows for instrument cleaning as well as dentures, burs, partials, and more. Durable, black, vinyl-clad steel wrapper resists scratches. Accepts 2 small instrument cassettes. 43 kHz operating frequency. Includes an EMI filter, 60-minute timer, rear-mounted drain, and tank cover. Accessory Kit #454 is a solid side basket and beaker kit for Q140, Q150, QS140, QS150R, and 2014.