Fine and Coarse Juicing Screen for Pulp Control. Capable of Juicing Wheatgrass at High Yield. Auto Cleaning System. Available in 120V60Hz and 220V50-60Hz The Vert VRT350 Low Speed Juicing System processes at 80 RPM, preventing oxidation and allowing juice to be stored for up to 72 hours without degradation. The contemporary design is complemented by a virtually indestructible ULTEM juicing screen that will withstand heavy duty juicing.