Amazon現在 Waterdrop G3 RO Reverse Osmosis Drinking Water Filtration System, NSF Certified, TDS Reduction, 400 GPD Fast Flow, Tankless, 1:1 Drain Ratio 無儲水桶逆滲透濾水系統 $539, 在價格的下方有個 $140 Off coupon, 鈎選coupon, 結帳時會自動減 $140變成 $399, 節省$140(26% Off), 免運費!!
– Waterdrop G3 $399
– Waterdrop G3P800 $699