The Filter-Bottle

grabcad

Supporting water conservation, the Cause Bottle features two openings - one for drinking and another for filling water through its smaller back end. A built-in filter purifies tap water, encouraging water conservation. The lid seals like a camera lens cover, while the filter is replaceable or can be swapped with add-ons such as flavor imparting or anti-bacterial devices. An attached straw on the sipping end minimizes leakage when inverted. Manufacturing steps include hydroforming the bottle body, injection molding for rubber grips, and lids. Constructed from 18/8 stainless steel, the bottle has a capacity of 696ml and is made of food-grade plastic like HDPE or PET, with FDA-approved silicone or neoprene for rubber parts. Leak-proof, it fits car cup holders, stands on flat surfaces, and offers branding space on both lids and the bottle itself. With a wall thickness exceeding 1mm, the sipper lid screws tightly.