The Model 425 from Solinst (Canada) is a stainless steel sampler, with LDPE tubing mounted on a convenient reel. Discrete interval sampling
is ideal for obtaining truly representative water samples from below floating product layers (LNAPL), or for obtaining samples of the product itself (LNAPL and DNAPL). Can be used to profile open bodies of
water and boreholes, and collect samples from distinct zones.