a removable utility fluid bottle cover is provided for covering a refillable fluid reservoir bottle that has a dual function , releasable element subassembly with an inwardly facing surface fastened to the bottle cover and an opposing outwardly facing surface being adapted for receiving at least one exterior detachable accessory fixture subassembly for improving a fluid reservoir bottle aesthetics , for adding additional shelf storage space , and for bottle transfer portability . the removable utility fluid bottle cover is designed to flexibly cover a standard five - gallon , refillable fluid reservoir bottle while the bottle is in use as a personal potable water supply or as a flammable gas utility supply that is supplemental to the common municipality - provided utility sink tap water source or building flammable gas source . the removable utility fluid bottle cover enhances the plain standard plastic bottle aesthetics by facially enclosing the exterior unremarkable plastic surface of the fluid reservoir bottle , affords visual fluid level observation , and provides supplemental handy storage space .