Blu Technology AR3 RV Water Filter System review
By Daryna Klochko · Published · Specs checked Oct 14, 2026 · 
Scores 8.75/10, 3rd of the 5 RV filters we track. At $499.99 it is the most expensive of the 5 RV filters, against a category median of $37.99. Blu Technology publishes its own test data, but we found no certifier listing for its reduction claims; none of the 5 RV filters has one.
Running costs matter: about $260 a year in cartridges, 2.6 times the category median
- Price
- $499.99
- Certified for
- Brand claims only
- Flow
- 5.5 gpm (brand)
- Cartridge life
- 4,000 gal claimed
- Cost per year
- $260
- Warranty
- 1 year
Certification
Materials listing only: Blu Technology publishes its own test data; we found no certifier listing that covers reduction claims.
Blu Technology also claims Cysts: 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 · all from goblutech.comFiltration
Cartridges and install
Buying
Warranty, returns and shipping
1 year if registered within 30 days (3 months otherwise).
30 days (money-back).
Warranty: 1 year if registered within 30 days (3 months otherwise). Returns: 30 days (money-back). Shipping: not stated by the brand. Source: goblutech.com, checked Oct 14, 2026.
Source: goblutech.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) | $40.99 | Chlorine | $48 | 1 year | 9.5/10 | Check price → |
| Blu Technology AR3 RV Water Filter SystemTHIS MODEL | $499.99 | Brand claims only | $260 | 1 year | 8.75/10 | Check price → |