GROCO Garboard Drain w/Inside T-Handle PlugGarboard Drain w Inside T Handle Plug The Concept Bronze Garboard Drain Once your boat is in its cradle, sling, lift, or trailer, draining the bilge is easy with a garboard drain. All models install from the outside. Garboard drain pipe concept bronze Garboard drain pipe with internal T handle and plug and play type Once your boat is parked in the frame, sling, lift or trailer, you can easily drain the bilge with a simple tool. SKU: NVN 75341 MPN: TD