Water6.3
Waterdrop G2 Reverse Osmosis System for Home
$249.99
With code G2W at checkout ($50 off; list price $299.99)
Also at eBay $299.99
Price as of 2026-11-10 00:46 UTCBest Reverse Osmosis Systems for Home (2026)
Under-sink and countertop reverse osmosis systems, with today's price and partner codes. 7 price-checked reverse osmosis systems, each with today's price. Lowest right now: Waterdrop C2SL Countertop Mineral Reverse Osmosis System wit at $159.99.
The picks
Water6.3
Waterdrop G3P600 Undersink Tankless Reverse Osmosis System
$409
With code WDG3P600G at checkout ($130 off; list price $539.00)
Also at eBay $539.00
Price as of 2026-11-10 00:46 UTC
Water6.3
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System
$739
With code WDG3P800G at checkout ($260 off; list price $999.00)
Also at eBay $999.00
Price as of 2026-11-10 00:46 UTC
Water6.3
Waterdrop M6H Instant Hot Reverse Osmosis System
$309
With code WDM6H at checkout ($110 off; list price $419.00)
Also at eBay $429.00
Price as of 2026-11-10 00:46 UTC
Water6.3
Waterdrop M6SL Mineral Reverse Osmosis System Countertop Water Filter
$249
With code WDM6SL at checkout ($80 off; list price $329.00)
Also at eBay $329.00
Price as of 2026-11-10 00:46 UTC
Water5.9
Waterdrop C2SL Countertop Mineral Reverse Osmosis System with Glass Pitcher
$159.99
With code WDC2SL at checkout (20% off; list price $199.99)
Also at eBay $179.99
Price as of 2026-11-10 00:46 UTC
Water5.5
Waterdrop G5P700A Alkaline Reverse Osmosis Water Filter
$286.99
free shipping
Also at Waterdrop $289.99
Price as of 2026-11-09 18:25 UTCAt a glance
Prices, side by side
| Product | Today | 5-day avg | 5-day low | Change | 5 days | Signal | Buy |
|---|---|---|---|---|---|---|---|
| Waterdrop G2 Reverse Osmosis System for HomeWaterdrop |
$249.99 | — | — | — | Buy | ||
| Waterdrop G3P600 Undersink Tankless Reverse Osmosis SystemWaterdrop |
$409.00 | — | — | — | Buy | ||
| Waterdrop G3P800 Undersink Tankless Reverse Osmosis SystemWaterdrop |
$739.00 | — | — | — | Buy | ||
| Waterdrop M6H Instant Hot Reverse Osmosis SystemWaterdrop |
$309.00 | — | — | — | Buy | ||
| Waterdrop M6SL Mineral Reverse Osmosis System Countertop Water FilterWaterdrop |
$249.00 | — | — | — | Buy | ||
| Waterdrop C2SL Countertop Mineral Reverse Osmosis System with Glass PitcherWaterdrop |
$159.99 | — | — | — | Buy | ||
| Waterdrop G5P700A Alkaline Reverse Osmosis Water FiltereBay |
$286.99 | — | — | — | Buy |
Every product here is in the Kyasla catalog with a live price at a partner store. Kyasla Picks, our hand-picked short list, come first, then the rest by Kyasla score. Prices refresh several times a day; the time of the last check is shown on each card.