Water and suspended sediment enters the sampler through an intake nozzle filling a 16 oz. plastic bottle. An exhaust tube is cast into the body to allow air to escape down stream as it is displaced by the sample.
Two versions are available: The DH-48 is a cast aluminum sampler designed for use in streams which are shallow enough to be waded. The DH-59 is a bronze cast cable suspension unit for sampling at greater depths. DH-48 comes with two 1/4" nozzles, 1 ft. wading rod with handle and sample bottles. DH-59 comes with two 1/4", two 3/16" and one 1/8" nozzles.