Tube Holder Triple Variable Flow, only Back Catalog number: 800074 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request 800165 Sorbent tube adapter nipple for Dual manifold High Price on request 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request