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. The Aqua-Magic V is more than 1-1/2" taller than Aqua-Magic IV, and it’s still lighter. The new single hand lever is bigger, more comfortable and simpler to use. Halfway adds water; full activation flushes.