The demand elasticity for both bottled water and home water filtration devices is the only factor that differentiates them. Bottled water has a relatively inelastic demand given that it is widely available, portable and convenient. Sometimes consumer bottled water for the sake of convenience or to use whenever there are no clean and safe tap waters, especially when they nee immediate hydration. Moreover, bottled water bears a low cost as compared to other alternatives such as energy drinks or soft The elasticity of demand between home water filtration systems and bottled water is different due to such factors as cost, environmental issues, consumer preferences, and convenience perceptions. rinking water notwithstanding, their e