The 1000 can hold up to 200 instruments in any combination of baskets, cassettes, cassette holders and breakers. The 2000 holds up to 400 instruments. New narrow frequency band for more powerful cavitation. Instant heating of solution for better cleaning. De-gas feature to remove air bubbles for faster cleaning. Above-the-tank control panel for visibility, safety and reliability. Operating level line to prevent over or underfilling. Wider snap-on drain line empties tank fast. Can be counter-sunk or used on countertop.