The Boyd Flotation Venus Free Flow replacement waterbed mattress bladder will fit inside a 6″ mid fill softside waterbed mattress. You can control your level of firmness by adding more or less water.

This is a replacement bladder for a 6″ mid fill softside waterbed mattress. It will fit inside your existing 6″ mid fill softside waterbed foam cavity. A free flow mattress provides for a greater deal of motion than a fiber filled waterbed mattress bladder.

We recommend that when you purchase your new softside waterbed mattress bladder that you add Blue Magic Waterbed Conditioner at the time of filling. By properly conditioning your waterbed mattress each year you protect the vinyl, fiber and foam. Waterbed Conditioner also controls odor causing gases and slime forming bacteria.