Tube holder plug for manifold Back Catalog number: 800229 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9980-50 Sorbent Tube, XAD-7, 6X70, 60/30, 50/BX Price on request F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request 400253 Tube Holder, Clear Storage Box Price on request