Charcoal Tube, Coconut Shell, Standard, 50/100mg,

Tube Holder Collar Clip, for 3/8" OD, 1/4" ID Tubi

Tube Holder Housing End, 5/8", for 1/4" OD, Open E

Tubing, 1/8" ID x 1/16" W, Clear PVC, (3 ft)