Bogorov Counting Chamber Combo Pack, 1 each; 6ml & 39ml, Acrylic $43.95 All-Weather Pocket Notebook, 4" x 6" $4.95 Drift Net, 80 Micron, No Bucket $229.95 Surber, 500 Micron (#35 Mesh, US Standard), Classic (no bucket) $189.95 Zebra Mussel Sampler (Hester Dendy), Disposable, no cross contamination $30.95 $28.95 Plankton Tow Net, 80 Micron 12" (30cm) Dia., 36" (90cm) Long $89.95 Dissolved Oxygen Kit $49.95 Gee Minnow Trap $12.95 Ekman Dredge, 6" x 6" x 6" $507.00 Bottom Dredge, 15lb. $438.00 0.1mL Palmer Counting Cell, Stainless - Glass $69.95 1mL Sedgewick Rafter Counting Cell, Brass - Glass $29.95