The cap body is manufactured from PTFE and is supplied with a TFE/propylene o-ring and a polypropylene screw collar. The connecting threads on the top of the cap use standard 1/4-28 flangeless fittings. Two of the ports have 1/8" through holes, the third port has a 1/16" through hole.

Three holes have 1/4-28 threads top and bottom with 1/8" I.D. holes through to accept 1/8" O.D. PTFE tubing. Body is PTFE. Supplied complete with three 1/4-28 CTFE plugs and a TFE/propylene o-ring.

Three on-off CTFE valves have 1/4-28 threads top and bottom. Valve body is PTFE. Valve stem material is CTFE. O-ring material for valve stem and lower seal is TFE/propylene.