If you're considering an NSK laboratory system, you're already looking at some of the most reliable and high-performing lab motors available. But with multiple models like the Ultimate XL Torque , Ultimate XL Compact , Volvere i7 , and the Presto Aqua , how do you decide which one is best suited for your clinic? Lets break it down below! NSK Volvere i7. NSK Ultimate XL. NSK Presto Aqua II Key Differences Feature Ultimate XL Torque Ultimate XL Compact