Our Direct Inject leak sealants and additives are the perfect first line of defense against leak in your marine refrigeration systems of all types: sailboats, yachts, commercial refrigeration, and refrigerated containers. Perfect for those hard to reach systems, from refrigerators, to trash, evaporating units, or compressor/condenser systems, and more. Proven in over 3 Million applications, it is the quickest and most straightforward freon leak sealer to install.