5 Pack of Blue Magic Waterbed Conditioner

This is a two and a half year supply for one mattress at a low price.
The manufactures of waterbed mattresses recommend 
that you add conditioner every six months.
 This conditioner is designed to keep the water fresh so algae/bacteria does not build up in your mattress and it will also keep the vinyl soft. If you do not use conditioner the vinyl will tend to dry & harden do to the powerful heating systems and age which could result in cracks or seam splits; So it's pretty important.