The Dissolved Oxygen Sewage Sampler collects two simultaneous samples in accordance with APHA specifications. A bucket-type sampler, it's perfect for manual spot-sampling of water or wastewater at depths up to five feet.

• Displaces three times bottle volume without aeration

• Collects samples suitable for BOD, DO, and other laboratory determinations

• Accommodates two 250 or 300 ml bottles

• Easily lowered to desired depth, since adequate weight is provided by stainless steel and nickel-coated brass construction

• Comes with two sturdy suspension chains and rubber stoppers

• Thermometer clip on air vent tube

• Rubber gasket and clamps ensure airtight closure