Tube holder plug for manifold Back Catalog number: 800229 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9974-50 Sorbent Tube, XAD-2, 8X110, 150/75, 50/BX Price on request 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request