Tube Holder Kit, Dual Variable Manifold (Includes Back Catalog number: 800251 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800075 Tube Holder Quad Variable Flow, only Price on request 800074 Tube Holder Triple Variable Flow, only Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request