The all-new Aqua-Magic V is much more than a replacement for the Aqua-Magic IV. The new shape reflects a deeper bowl inside and a more home-like style for the RV bath. All this, and it's still larger than Aqua-Magic IV. Easier to install, use and service, has become the Thetford hallmark, and Aqua-Magic V is no exception. The result: better value for you and your customer. Less effort is needed to add water to the bowl and to flush. And you get full bowl coverage. Sized for More Comfort: Aqua-magic V is more than 1-1/2-inch taller than Aqua-Magic IV. The high-profile seat height is nearly 17-1/2-inch, the height most requested by RVers. Designed and Built to Look Great Longer: Sturdy polymer base and bowl. The textured lid sheds water beautifully while resisting scuffs. Elegant new bolt covers are optional.