WaterdropK19-H Instant Hot Countertop RO System
Countertop RO with instant hot dispensing and no plumbing required.
$379
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Usability
Usability
The K19-H is the K19-S plus a heater, for $70 more. Everything else is identical — same 170 oz tank, same six stages, same 3:1 ratio, same NSF/ANSI 42, 58 and 372 certification, same $75 a year in filters, same footprint — with five dispensing volumes instead of four and hot water on demand. Whether the premium is worth it comes down to how often you make tea or coffee; as an RO system it performs identically to the cheaper model. It remains a countertop unit, so the hand-refilled tank and counter footprint apply exactly as they do to the K19-S.
- Instant hot filtered water with no plumbing
- NSF/ANSI 42, 58 and 372 certified
- Filters run about $75/year
- 3:1 pure-to-drain
- Five selectable dispensing volumes
- Same footprint as the non-heated model
- Identical filtration to the $70-cheaper K19-S
- Tank must be refilled by hand
- Substantial counter footprint
- Requires a mains socket
- One-year warranty
The K19-H is the K19-S with an instant hot stage added: the same no-plumbing countertop RO system and 170 oz tank, but dispensing at drinking or brewing temperature across five selectable volumes.
Additional information
Specification: Waterdrop K19-H Instant Hot Countertop RO 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.
