Tube Holder Housing End, 1/2" for 5mm OD Back Catalog number: 800063 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request 800075 Tube Holder Quad Variable Flow, only Price on request 800249 Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Price on request