Rotaflow Stopcocks Screw Type ‘Sciencent’ PTFE (Teflon) key, with two limbs plain, at right angle, capillary bore 2mm.

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• Rotaflow Stopcocks Screw Type ‘Sciencent’ PTFE (Teflon) key, with two limbs plain, at right angle, capillary bore 2mm.