Permeate Pump Upgrade

Upgrade your system with a Permeate Pump to maximize water efficiency and reduce unnecessary wastewater.

Upgrade Benefits

✔ Improved Water Efficiency – Helps improve the wastewater to purified water ratio from roughly 3:1–4:1 down to around 1:1–2:1, depending on incoming pressure.

✔ Less Water Waste – A smart upgrade for households looking to reduce water consumption and environmental impact, especially in water-conscious regions like California and the Southwest.

✔ Faster Tank Refill – Helps your system recover more quickly between uses.

✔ No Electricity Required – Powered by the system’s existing water pressure.

✔ Better Overall System Performance – Helps your reverse osmosis system operate more efficiently.

This upgrade helps your system produce more purified water while sending less water to the drain, making it a great option for homeowners who value efficiency and responsible water use.

Remineralization Upgrade

“Purified water with balanced minerals designed for daily hydration.”

After reverse osmosis filtration removes dissolved impurities, this stage adds back select minerals to help create water that is not only clean, but more balanced and refreshing to drink. Naturally occurring minerals, such as calcium and magnesium, play important roles in the body, supporting bone health, immune function, muscle activity, and overall cellular processes. Because water is the foundation of every cell in the body, restoring a balanced mineral profile helps create water that better supports daily hydration and overall wellness.

Upgrade Benefits

✔ Restores Beneficial Minerals – Adds back naturally occurring minerals commonly found in healthy drinking water.

✔ Balanced pH – Helps raise and stabilize the pH after reverse osmosis filtration.

✔ Improved Taste – Creates smoother, more refreshing drinking water.

✔ Optimized for Daily Hydration – Designed for those who want water that supports a balanced, health-conscious lifestyle.

✔ Premium System Upgrade – The most refined option in the Crescent Series for those who want both high purity and mineral-balanced water.

Advanced Reverse Osmosis Filtration for City Water & Chloramine Removal

The Luna Crescent - 5 Stage Under Sink Reverse Osmosis System is designed specifically to treat municipal city water, where disinfectants like chlorine and chloramine are commonly used to maintain water safety in distribution systems.

This advanced under sink RO water filter system combines catalytic carbon technology with precision reverse osmosis filtration to reduce chemical disinfectants, heavy metals, and dissolved contaminants, producing clean, great-tasting drinking water directly from your faucet.

With five carefully engineered filtration stages, the system delivers high-purity water for drinking, cooking, coffee, tea, and everyday hydration.

Stage 1 – Sediment Filter

Reduces

• rust
• sand
• sediment
• suspended particles

Stage 2 – Catalytic Carbon Filter

Reduces

• chloramine
• chlorine
• chemical taste and odor
• volatile organic compounds (VOCs)

Stage 3 – Carbon Block Filter

Reduces

• residual disinfectants
• pesticides and herbicides
• organic chemicals
• unwanted taste and odor

Stage 4 – Reverse Osmosis Membrane

The reverse osmosis membrane is the core purification stage of the system

Removes or reduces

• lead
• arsenic
• fluoride
• nitrates
• heavy metals
• dissolved salts
• many pharmaceutical and industrial contaminants

Membrane Size Options (50–200 GPD)

Reverse osmosis membranes are rated by GPD (gallons per day), indicating how much purified water the system can produce under optimal conditions.

50 GPD Reverse Osmosis Membrane * (default size option) *
Best for 1–2 people or light drinking water use.

75–100 GPD Reverse Osmosis Membrane
Ideal for average households (3–4 people) using filtered water for drinking and cooking.

150–200 GPD Reverse Osmosis Membrane
Recommended for larger families or higher water usage, providing faster tank refill and higher daily production.

Selecting the right membrane size ensures your under sink RO system keeps up with your household’s drinking water demand.

Stage 5 – Post Carbon Polishing Filter

The final filtration stage is a post-carbon polishing filter, which enhances the taste and freshness of the water before it reaches the faucet.

Tank Specifications

Model
RO-122

Total Tank Capacity
3.2 Gallons

Usable Water Storage Capacity
2.8 Gallons

Connection Size
1/4" NPT

Tank Dimensions
9" Diameter × 15" Height

Certification

This storage tank has been tested and certified by NSF International under ANSI/NSF Standard 58, meeting established requirements for material safety and structural integrity in reverse osmosis system components.