Vespel® ferrules contain 15% graphite and are ideal for glass and fused silica capillary columns.

The stainless steel metal frit spargers have been designed for use with the S.I.S. purge and trap system.

All tubes are constructed from borosilicate glass with 0.5" O.D. tube ends for mating with standard 1/2" fittings.

The Purge and Trap System consists of two single-ball rotameters with adjustable needle valve mounted on a nylon plastic base with an 18" long mounting rod support.

For loading small samples into Silco Coated desorption tubes

To help clean tubes.

The top fitting of both purge heads consists of a 1/16" fitting for the attachment of the sparging needle followed by needle adaptor to seal the needle in place and provide for the attachment of the purging gas line.