Semi Waveless Fluid Chamber Series 200 Mid Fill Softside Waterbed Bladder by Innomax Cal King Semi Waveless LS Series 200 Softside Waterbed Fluid Chamber by Innomax Change the feel of your softside waterbed by changing the water chamber Universal Fit Softside waterbed chamer. Fits almost all standard softside waterbeds Softside waterbed bladder Waterbed fluid chamber