Material: pp No need electricity Model: WD-13-11A: 2L WD-13-11B: 3.5L
https://www.brotherpets.com/Whale-Shape-Unplugged-Pet-Drinker-632.htmlMaterial: PP Capcitiy: 3.5L No need electricity Model: WD-13-12
https://www.brotherpets.com/House-Shape-Unplugged-35L-Pet-Drinker-633.html