While tank reservoirs for PC water cooling serve the same purpose as tubular reservoirs, their shape is distinctly different. The term tank reservoir includes essentially any reservoir that isn’t tubular, bay mount or case-specific. While most are cubic in shape there are exceptions that allow for a more custom appearance. Tank reservoirs offer a different look than their typical tubular counterparts without the expense normally associated with a specialty reservoir. TITAN RIG’s line of tank reservoirs spans several brands, shapes and sizes.