Fresh Water Tank for 2007 StarCraft S 18RB | 25 Gallon RV Replacement

A replacement for the reported W1192 tank is not confirmed from the coach name, year or stated capacity. The original W1192 drawing and complete part/revision have not been verified, so the earlier 31-gallon coach specification and 25-gallon W1192 identification should not be treated as established facts. Preserve the original tank label and drawing number, and compare the complete drawing with the available installation space.

The reported 10 × 20 × 24-inch dimensions and 25-US-gallon capacity conflict if those numbers describe a rectangular external envelope: 10 × 20 × 24 ÷ 231 is about 20.8 US gallons before allowing for wall thickness or other lost volume. This is a consistency check, not a rated tank capacity. Recheck the units, dimension order, tank shape and complete drawing rather than selecting a nominally 25-gallon substitute.

For an actual replacement, verify the full envelope and projections, support and mounting arrangement, fill and vent connections, pump outlet, drain, port locations and orientation, thread or hose interfaces, and suitability of the tank and all wetted parts for drinking water. Blank and factory-fitted configurations differ by exact product; there is no catalog-wide rule that freshwater tanks arrive with no fittings. Sensor inclusion and compatibility with the existing monitor also require exact-item evidence.

The retained kit card below is a black/gray-water reference, not a freshwater recommendation. ERVP-HOLDINGTANKKIT is identified in its current listing and installation document for waste tanks. Its couplers, grommets and probes do not establish a potable-water installation or a match to W1192. Do not assume it supplies every required fitting or sensor, and do not modify a tank from this answer. No exact replacement tank or kit-to-tank fit is confirmed here.