Tube Holder Housing, 6x70mm, 1/2" OD, S225 Back Catalog number: 200102 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request 800165 Sorbent tube adapter nipple for Dual manifold High Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request