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BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System
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BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System

✔ Trusted by 200,000+ U.S. homeowners
✔ Over 10 years of proven water filtration experience

X6L-D0U-TRT

  • Complete 12-Piece Set: Includes 3 polypropylene sediment filters, 3 granular activated carbon filters, 3 carbon-block filters, and 3 replacement UV lamps.

  • Made for the BLUONICS US-3U: Replacement components for the compatible BLUONICS 4-stage under-sink filtration system. Confirm your system model before ordering.

  • Standard Cartridge Size: Includes 2.5 × 10-inch, 5-micron replacement cartridges designed for compatible standard filter housings.

  • Four-Stage Replacement Sequence: Sediment filtration, granular activated carbon, carbon-block filtration, and a replacement UV lamp for the compatible system.

  • 6W Four-Pin Lamps: Includes three 6W replacement lamps with four-pin connectors. Compare the lamp length, wattage, and connector with your existing lamp before purchasing.

  • Routine System Maintenance: Replace components according to your system manual and local water conditions.

 

On the fence about this BLUONICS 12-Piece Replacement Filter & 6W UV Lamp Set for US-3U 4-Stage Under-Sink System? Don't be. Let our satisfaction guarantee address your concerns.

Inventory Last Updated: Sep 15, 2026

Customer Reviews

Based on 4 reviews
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J
Jeffrey Stefanoff (Fresno, California, United States)

Bluonics 12 pc Replacement Water Filter Set for Our 4 Stage UV Under Sink Filter System. Sediment Carbon Block GAC UV Bulb

b
bob gonzales (Honolulu, Hawaii, United States)

Bluonics 12 pc Replacement Water Filter Set for Our 4 Stage UV Under Sink Filter System. Sediment Carbon Block GAC UV Bulb

R
Robyn Bandinel
Works well

Living in the DR where many minerals are in the water it definitely makes a difference and Customer Service was excellent!

K
Kevin Skillern (Alamo, California, United States)
best customer service EVER

I ordered the UV filtration system and needed extra filters for backup. Needed help with everything from choosing the right filter, to installation and the staff at Bluonics was able to answer all my questions. They were so patient and helpful. Highly recommend this company.