Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Back Catalog number: 800254 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9985-50 Sorbent Tube, Florisil, 6X70, 100/50, 50/BX Price on request 200486 Tube Holder Tubing, 1/4" ID x 1/16" W (10 ft) Price on request 400253 Tube Holder, Clear Storage Box Price on request