Whale 2-Way Waste Manifold 12' Cable 1-1/2" Ports [WM3884B]2 Way Waste Manifold 12' Cable 1 1 2" Ports 2 way manifold with Whale Intelligent Control built in. The waste manifold can be used with a Whale Gulper pump to create a greywater disposal system. The manifold accepts two waste inputs and senses water through the wall. This relays information to the Gulper IC pump to turn on and pump the wastewater. This Whale WM3884B IC manifold has 12 feet of cable and 1 1 2" ports. Specifications: Height: 115mm (4 1