Sorbent Tube, Porapak-P, 6X110, 100/50, 50/BX Back Catalog number: 811-9982-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 171SC Formaldehyde 0.05-4.0 ppm Gas Detector Tube, pk/10 Price on request 800138 Tube Holder Adapter for 5/8" Ends Price on request 800135-10 Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubing (Packg of 10) Price on request