Black rubber with two plastic valves Useful for taking gas samples, circulating gases or liquids, etc. Bulb length 4-1/8”; diameter 3-1/4”; overall length 5-1/4”

Natural rubber bulbs with 4" tubing on one end.

Style E: Natural Rubber - 1951B31, B33, B41 Style F: Natural Rubber - 1951B37 Style G: Natural Rubber - 1951B43

For dropping pipets, medicine droppers, etc. Neck grooved to take flat flange of dropping pipets Bulbs have a 2 mL capacity and fit 7-9 mm o.d. pipets.

For dropping pipets, medicine droppers, etc. Fit pipets with 6-8 mm OD, 1/4” Beige color 1 mL bulb is 9/16” diameter x 1 1/2” long (14 x 37 mm); 2 mL bulb is 5/8” diameter x 1 3/4” long (18 x 45 mm)