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Clean drinking water isn’t something most homeowners think about until they notice disagreeable tastes, odors, or buildup from minerals and chlorine. Tap water can contain contaminants, excess minerals, and chlorine that affect both taste and quality, and upgrading to a reverse osmosis system is one of the most effective ways to improve it. Right now, the Waterdrop G3P800 Tankless Reverse Osmosis System is listed at $849 (was $999), with the discount applied when you enter the code (WDG3P800) at checkout.
Waterdrop has built a strong reputation for designing reverse osmosis units that combine advanced filtration technology with sleek, space-saving designs that fit easily under the sink. Waterdrop also offers upgraded versions with features such as UV sterilization, remineralization, and smart system monitoring. Several of those enhanced options are included below, along with bundle kits that extend filter life and reduce long-term maintenance.
Note: Enter the listed promo code at checkout to receive the discounted price shown.
Our Favorite Waterdrop Spring Deal
Waterdrop G3P800 Tankless Reverse Osmosis System
Photo: Waterdrop
This tankless reverse osmosis system delivers fast, high-capacity filtration while saving under-sink space with a compact design. It’s a strong entry into Waterdrop’s premium lineup, and additional G3P800 variations add features like remineralization, UV sterilization, and extended filter kits for even more flexibility.
More Discounts on Waterdrop Filter Systems
If you’re still looking for just the right reverse osmosis unit, check out these Waterdrop models that come with a variety of features to suit individual needs.
G3P800 Series
Use discount code: WDG3P800
- Waterdrop G3P800 Alkaline RO System for $878.99 (was $1,028.99)
- Waterdrop G3P800 Remineralization + UV RO System for $876.99 (was $1,026.99)
- Waterdrop G3P800 2-Year Combo Kit for $938.00 (was $1,088.00)
- Waterdrop G3P800 Extra 2-Year Filter Combo for $1,168.93 (was $1,318.93)
G3P600 Series
Use discount code: WDG3P600)
- Waterdrop G3P600 Remineralization RO System for $466.99 (was $566.99)
- Waterdrop G3P600 RO System with UV for $558.00 (was $658.00)
- Waterdrop G3P600 Reverse Osmosis System for $468.99 (was $568.99)
- Waterdrop G3P600 RO System with Tank for $469.99 (was $569.99)
- Waterdrop G3P600 Filter Combo System for $526.97 (was $626.97)
- Waterdrop G3P600 CF Filter System for $468.00 (was $568.00)
- Waterdrop G3P600 2-Year Filter Combo for $728.93 (was $828.93)
- Waterdrop G3P600 3-Year Warranty System for $503.99 (was $603.99)
K6 Series
Use discount code: WDK6
- Waterdrop K6 Instant Hot Water Dispenser for $599 (was $799)
- Waterdrop K6 Remineralization Hot Water System for $626.99 (was $826.99)
- Waterdrop K6 Alkaline Hot Water Dispenser for $628.99 (was $828.99)
- Waterdrop K6 3-Year Warranty System for $677.99 (was $877.99)
- Waterdrop K6 2-Year Warranty System for $658.99 (was $858.99)
X Series High-Capacity Smart Systems
Use discount code: WDX8
- Waterdrop X8 RO System with UV for $828.99 (was $928.99)
- Waterdrop X12 RO System with Filter Combo for $1,191.97 (was $1,391.97)
- Waterdrop X12 RO System with Tank Combo for $1,136.99 (was $1,336.99)
- Waterdrop X16 RO System with Filter Combo for $1,691.97 (was $2,091.97)
Entry-Level Systems
Use discount code: WDD6
- Waterdrop D6 RO System with UV for $349.99 (was $499.00)
- Waterdrop 600GPD Undersink RO System with Tank for $279.99 (was $429.99)
