Single Variable Flow Kit, 6 x 70mm (Standard Charc Back Catalog number: 800253 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800072 Tube Holder Single Variable Flow, only Price on request 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request