Tube Holder Quad Variable Flow, only Back Catalog number: 800075 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request 800062 Tube Holder Housing End, 1/2" for 6mm OD Price on request 800062-10 Tube Holder Housing End, 1/2" for 6mm OD (Packg of Price on request