Marine Direct Offers three types of marine engine flush systems- Roto Flushing System, Salt-X products and Volvo Neutra Salt.
The Roto system is designed for boats permanently moored in the water.
Salt-X products protect outboard and inboard engines that can be traliered. The Salt X Product can also be used in the Roto Flushing System.
NeutraSalt is manufacturerd by Volvo Penta and used in their own systems. Note only use NeutraSalt in Volvo Penta engines that are under warranty.