Universal Whole House Filter or Undersink Reverse Osmosis RO Replacement Set of 18 filter cartridges: Sediment, GAC, CTO Carbon Block. 3 Year Supply. Free Shipping.

$99.00

Description

3UF

3-Stage Replacement Filter Set – Sediment + GAC + Carbon Block (18 Cartridges Total)

This 3-Stage Replacement Filter Set includes a total of
18 filter cartridges (6 of each type), designed for use in
undersink reverse osmosis (RO) systems and
whole house filtration systems with 3/4″ Port that utilize standard 10″ slim cartridges.

The set provides complete multi-stage filtration to help reduce sediment, chlorine,
chloramine, VOCs, and improve overall water taste and odor.

Stage 1 – 5 Micron Sediment Filter

Size: 9 7/8″ × 2.5″

Removes dirt, silt, sand, rust, and scale particles. This pre-filter protects downstream
carbon filters and helps extend the life of the overall filtration system.

Purpose: Use as the first stage in undersink RO systems and whole house filters.

  • Micron Rating (Nominal): 5 Micron
  • Operating Temperature: 36°F – 100°F
  • Maximum Flow Rate: up to 8 GPM
  • Maximum Pressure: 100 PSI
  • Quantity: 6 cartridges

Stage 2 – GAC Granular Activated Carbon Filter

Size: 9 7/8″ × 2.5″

Effectively reduces chlorine, chloramine, VOCs, and improves unpleasant taste and odor.
Granular activated carbon provides high adsorption capacity and consistent performance.

Purpose: Use as the second stage in undersink RO or whole house filtration systems.

  • Micron Rating: Not rated (GAC media)
  • Operating Temperature: 36°F – 100°F
  • Maximum Flow Rate: up to 8 GPM
  • Maximum Pressure: 100 PSI
  • Quantity: 6 cartridges

Stage 3 – Carbon Block Filter

Size: 9 7/8″ × 2.5″

Provides fine carbon filtration to further reduce chlorine, chloramine, VOCs,
and improve taste and odor for clean, great-tasting water.

Purpose: Use as the third stage in undersink RO or whole house filtration systems.

  • Micron Rating (Nominal): 10 Micron
  • Operating Temperature: 36°F – 100°F
  • Maximum Flow Rate: up to 8 GPM
  • Maximum Pressure: 100 PSI
  • Quantity: 6 cartridges

Key Benefits

  • Complete 3-stage replacement filter set (18 cartridges total)
  • Good for 6 replacements
  • Improves water taste, odor, and clarity
  • Helps protect plumbing, fixtures, and appliances
  • Standard 10″ slim cartridge size (9 7/8″ × 2.5″)
  • Compatible with many undersink RO and whole house systems

Compatibility

  • Fits most systems using standard 10″ × 2.5″ filter housings
  • Suitable for undersink RO systems and whole house filtration setups

Maintenance

  • Typical replacement interval: every 6–12 months per stage, depending on water quality and usage
  • Replace sooner if pressure drop or reduced filtration performance is observed

Brand: Aqua / MyWaterClub
SKU: 3UF18
ASIN: B01J34R5O2

Additional information

Weight 240 oz
Dimensions 14 × 10 × 10 in
Brands

Aqua

2 reviews for Universal Whole House Filter or Undersink Reverse Osmosis RO Replacement Set of 18 filter cartridges: Sediment, GAC, CTO Carbon Block. 3 Year Supply. Free Shipping.

  1. 5 out of 5

    Nicholas K.

    Easy to installed, no leakage, water tasted great.

  2. 5 out of 5

    Jeremy

    These filters do a great job of removing whatever causes water to taste bad


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