T-H Marine Bait Tank Plumbing KitThis kit contains everything needed to rig a baitwell or tank.This kit includes professionally designed systems for aeration, directional flow, overflow drain and complete drain accessories. Just plumb your tank according to the detailed installation instructions.The kit contains the following T-H Marine products: ODT-190 90Adeg overflow drain tube; TH-1202 - 1 1/8" thru-hull for overflow control, drain plugging and well draining; AHV-1 valved aeration head for pumping in fresh water; DAH-90 directional aerator head for current creation; TEE 3/4 tee to connect both aerator heads to aerator pump;