Tube Holder Housing End, 5/8", for 1/4" OD, Open E Back Catalog number: 800071 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9981-50 Sorbent Tube, Porapak-N, 6X70, 88/44, 50/BX Price on request 800681-1 Tube Breaker Kit, Black, LFS-113 Price on request 800262 Single Tube Holder Kit, 7 x 130mm [Draeger Long T Price on request