Waterdrop RV Inline Water Filter (WD-RVS) review
By Daryna Klochko · Published · Specs checked Oct 14, 2026 · 
Scores 9.5/10, 2nd of the 5 RV filters we track. At $40.99 it costs more than the category median of $37.99. Its NSF listing covers chlorine, taste and odor only (NSF/ANSI 42). None of the 5 RV filters is listed for a health claim. Its cartridge cost of about $48 a year is less than half the $100-a-year median of the 4 RV filters with a stated cartridge cost.
- Price
- $40.99
- Certified for
- Chlorine
- Flow
- 0.5 gpm
- Cartridge life
- 1,350 gal
- Cost per year
- $48
- Warranty
- 1 year
Certification
Listed by NSF under NSF/ANSI 42 for Chlorine, checked Oct 14, 2026. Waterdrop also claims 2 more substances that are not in the listing. Search the NSF listings
- Chlorine
Waterdrop also claims Arsenic, Fluoride: brand claims, not in a certifier listing.
The contaminants or other substances removed or reduced by this water treatment device are not necessarily in your water. Listing checked on Oct 14, 2026. What a listing means and what it doesn't
Specs and sources
Checked Oct 14, 2026 · source under each valueFiltration
Cartridges and install
Buying
Warranty, returns and shipping
Warranty: 1 year. Returns: 30 days. Shipping: not stated by the brand. Source: waterdropfilter.com, checked Oct 14, 2026.
Source: waterdropfilter.com, checked Oct 14, 2026.
Compared with similar RV filters
| Model | Price | Certified for | Cost per year | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Kohree RV Inline Water Filter (HY1639) | $19.99 | Chlorine | $30 | 1 year | 9.75/10 | Check price → |
| Camco TastePURE RV Water Filter (40043) | $20.82 | Brand claims only | — | 1 year (limited) | 8.5/10 | Check price → |
| Clear2O RV and Marine Inline Water Filter (CRV2006) | $37.99 | Brand claims only | $152 | 90 days (limited) | 8.25/10 | See specs → |
| Waterdrop RV Inline Water Filter (WD-RVS)THIS MODEL | $40.99 | Chlorine | $48 | 1 year | 9.5/10 | Check price → |
| Blu Technology AR3 RV Water Filter System | $499.99 | Brand claims only | $260 | 1 year | 8.75/10 | Check price → |