Bel-Art Triple Holder Clamp for PiRack Polypropylene Pipettor Holder System

Weighted holder grips beakers or flasks firmly with four flared stainless steel prongs. Vikem®vinyl-coated lead ring weight secured beneath holder Keeps container immersed in water Provides a low center of gravity Allows water to circulate underneath the beaker or flask Can be used in boiling liquid up to 135°C(275°F) for 1 hour

Offers on/off and fine control so accurate that it replaces stopcocks in many applications. Can be installed without disconnecting tubing or interrupting operation. Molded of Acetal plastic, the clamp is autoclavable and resistant to acids, alkalis and organic solvents. Accepts flexible tubing up to 14mm (1/2") O.D.

Plastic Tubing Clamps are durable and will not rust or corrode. Select from 3 sizes for best tubing fit. The Mini Tube Clamp with single position on/off gives positive shut-off with fingertip control. Use for thin-walled tubing under 4.7mm (3/16") O.D. The Mid-Range Tube Clamp has a 15-position stepped adjustment that controls flow from full open to complete closure. Fits tubing from 3.2 to 11mm (1/8 to 7/16") O.D. The Maxi Tube Clamp is for tubing up to 19mm (3/4") O.D., and has a 12-position ratchet control from full open to complete closure.

These unique holders are perfect for keeping round and tapered bottom flasks upright. Inside wall has a slight taper to the open bottom; allows a variety of flask shapes and sizes to fit into one holder Wide base keeps flasks stable Side slots can be used as sight windows Molded from polypropylene plastic; durable and easy to clean Autoclavable at 121°C (250°F)

The three-way configuration of these stopcocks permits connection of any two or all three ports. Barbed tubulations accept rubber or plastic tubing. They are made of PVDF (polyvinylidene fluoride), a fluoroplastic resistant to most chemicals that withstands temperatures up to 204°C (400°F). Maximum pressure rating 34.3 KPa (5 psi). Steam autoclavable.