Keene Engineering 140HVS Hi Vac Power System Dry Washer w/ Blower-Backpacking scoop (200-300 Mesh) No longer do

(200-300 Mesh) No longer do you need to haul buckets of rocks home to crush not knowing if they hold Gold or not

Silver will be like 2

The Assay of Materials Requiring Preliminary Acid Treatment

inside across the top is 7-1/4"

This is a reprint of the 3rd edition

Keene Engineering 140HVS Hi Vac Power System Dry Washer w/ Blower-Backpacking scoop (200-300 Mesh) No longer doThis is the Complete Keene Engineering 140HVS Hi Vac Power System Dry Washer Some other new patented features of the Keene 140s dry washer also include: Soft Bed Technology: creates greater electrostatic charged recovery bed. Scrubbing Pins: for early separation of material and even flow before entry into the recovery tray. New Improved Vibrator System: creating greater vibration at lower engine speeds for increased gold production. Blast Gate