Tube Holder Housing, 7-10 x 110mm, 5/8", L240 Back Catalog number: 200113 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request 811-9981-50 Sorbent Tube, Porapak-N, 6X70, 88/44, 50/BX Price on request 800073 Tube Holder Dual Variable Flow, only Price on request