WaterdropK19-S Countertop Reverse Osmosis System
Countertop RO with no plumbing required and a 170 oz refillable tank.
$309
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Usability
Usability
The K19-S solves the problem that stops most people buying RO: it needs no plumbing at all. Fill the 170 oz tank, plug it into a wall socket, and it produces RO water on the counter with a 3:1 pure-to-drain ratio and a display showing TDS and remaining filter life. Certification is better than most of the Waterdrop range — NSF/ANSI 42, 58 and 372 — and filters run about $75 a year, the cheapest here. The trade-offs are the ones inherent to countertop RO: you refill a tank by hand, it occupies counter space, and throughput is a fraction of an under-sink unit. For renters and anyone unwilling to drill a sink, that is a fair exchange.
- No plumbing or drilling required
- NSF/ANSI 42, 58 and 372 certified
- Filters run about $75/year, the cheapest in the range
- 3:1 pure-to-drain
- Display reports TDS and filter life
- Four selectable dispensing volumes
- Tank must be refilled by hand
- Occupies a substantial amount of counter space
- Throughput far below an under-sink system
- Requires a mains socket
- One-year warranty
The K19-S is a countertop RO system requiring no plumbing: fill the 170 oz tank, plug it in, and draw filtered water at four selectable volumes. Six filtration stages, a 3:1 pure-to-drain ratio and a display reporting TDS and filter life.
Additional information
Specification: Waterdrop K19-S Countertop Reverse Osmosis System
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Questions answered from our data
Is Waterdrop a good brand?We list 29 Waterdrop products and score 29 of them. Their overall scores run from 5.0 to 7.6, with a median of 6.0, against a median of 5.7 for all 284 products we score.
How much does a reverse osmosis system cost?The 69 reverse osmosis systems we list run from $165 to $3,779, with a median of $367.
How long do reverse osmosis filters last?Of the 69 reverse osmosis systems we list, 64 state a filter life; the most common is 6-12 months (62).
Does reverse osmosis remove minerals?75 of the 76 reverse osmosis systems we list claim to reduce TDS.
