Super Single 12 Mil Pro Max Heavy Duty Hardside Waterbed Stand up Safety Liner * Reinforced Corners * Black Heater Compatible Bottom * New to the market Most of the safety liners that were made in the past and still being made today usually rip on the corners and they are not as deep as the frame. This new safety liner is a big improvement compared to the others that are available. Keep in mind a quality safety liner is what will help prevent water from going into your platform and onto your Floor if you have a leak. This is the best liner available. You will also receive a 4oz Premium Clear Bottle Water Bed Conditioner.