No-purge device provides comparable, formation quality samples of ALL parameters from small-diameter (1.5" and larger) wells for both short and long-term monitoring.

NEW! No-purge device provides larger sample, a full 1 liter, in 2" and larger wells.

NEW! No-purge device fills and composites sample from ~ 8' vertical interval in a 2" Schedule 40 well; used to collect and mix, in-situ, sample from 10" well screen.