For great solvent/chemical resistance, the two 0-4mm high vacuum valves have Teflon® covers over the two Viton® O-ring on the shaft and one integral Teflon® O-rings on the tip, without exposing any material other than Teflon®to any solvents. Syringe port has a 4mm Teflon® stopcock and a 14/20 outerjoint. Delivery port has 14/20 inner joint.
Accessories:
S181530 Replacement 4mm Teflon® Plug Only 18.15
S660004 0-4mm high vacuum metering plug and
control valve (Teflon® protect O-rings) 30.05
A741420 Evacuation/purging adapter,14/20 53.80
Capacity (mL):250
Joints:24/40