Tube Holder Adapter, 3/16" to 1/4" Ends Back Catalog number: 200187 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200114-10 Tube Holder Housing, 7-10 x 175mm, 5/8", L265 (Pac Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request