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 200504 Tubing, 1/8" ID x 1/16" W, Clear PVC, (10 ft) Price on request 811-9903-20 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10 Price on request 200187 Tube Holder Adapter, 3/16" to 1/4" Ends Price on request