The Sludge Nabber easily collects liquids, sludge and slurries. Perfect for horizontal flowing waters such as streams or sewers. Adjustable extension allows for easy access to sampling sources. Holds 250 to 500mL polyethylene sample bottles in place with included small snapper band; optional large snapper band (53774) will accommodate a 1000mL bottle. Sludge Nabber includes a 500mL translucent bottle and small snapper band. Length adjusts from 4´L to 6-1/2´L extended. Replacement bottles available.