Single Tube Holder Kit, 7-10 x 175mm Back Catalog number: 800261 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9965-50 Sorbent Tube, Silica Gel, 6X70, 150/75, 50/BX Price on request 800263 Single Tube Holder Kit, 5 x 150mm [Kitagawa TWA Tu Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request