As of Oct 27, 2026, 11:53 AM ET, the Waterdrop G3P600 Undersink Tankless Reverse Osmosis System - Black Faucet is listed online by Waterdrop (waterdropfilter.com) at $539; the store's feed doesn't report stock.
Waterdrop sells it online at waterdropfilter.com. The price and stock here come from Waterdrop's own product feed, checked Oct 27, 2026.
| Option | Model no. | Price | Online availability | |
|---|---|---|---|---|
| Standard | 42829472661586 | $539 | Listed online (stock not reported) | Buy at waterdropfilter.com |
| Standard | 42829472628818 | $539 | Listed online (stock not reported) | Buy at waterdropfilter.com |
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It costs $539 at Waterdrop, as of Oct 27, 2026.
Waterdrop's product feed doesn't say whether it's in stock. It lists 2 options at waterdropfilter.com; check there before you buy.
