The U03 delivers a fast, efficient output:

• 0.6 GPM (1.5 L/min)
• 800 GPD (gallons per day) capacity
• Fills a standard 240ml glass in about 7 seconds

No.The U03 operates entirely on water pressure (0.25–0.7 MPa) and requires no external power source.

The U03 delivers an industry-leading: 3:1 pure-to-waste ratio (≈75% efficiency). Saving 80–300 gallons per month compared with traditional RO systems.

The GlacierFresh U03 Under-Sink RO System comes in two configurations—Classic and Elite—both sharing the same physical size but using different faucet setups.

📏 Dimensions & Weight (Identical for Both Models)

Specification

Classic Model

12.80 × 8.27 × 16.54 in

17.64 lb

Elite Model

12.80 × 8.27 × 16.54 in

22.05 lb

The U03 meets:

• CE safety certification
• SGS quality standards
• NSF 58 (RO performance)
• NSF 372 (lead-free materials)

The U03 is NSF/ANSI 58 certified and provides comprehensive removal of more than 1,000+ contaminant classes using a 5-stage RO process.

Key contaminants reduction rates:

Category Reduction Health Concerns

Microplastics ＞99.99% Endocrine disruption

PFAS/PFOS ＞99.99% Cancer, immune suppression

Lead ＞99% Neurological harm

Mercury ＞98% Kidney & brain toxicity

Chlorine ＞99.5% Irritation, harmful byproducts

Fluoride 88-94% Fluorosis (pH-dependent)

Nitrates 94-97% Blue-baby syndrome

Additional Removal Capabilities:

    · Pesticides (Atrazine, Glyphosate)

    · Pharmaceuticals (Estradiol, Ibuprofen)

    · VOCs (Benzene, TCE)

    · Cysts (Giardia, Cryptosporidium)

    · Herbicides (2,4-D, Simazine)

If TDS remains high after installation, the following factors are typically responsible:

Possible causes:

1: Filters were not fully flushed.

   · Flush the system for 10-15 minutes after installation.

2: RO membrane not seated properly.

   · Remove and reinstall securely.

3: Inlet water pressure is insufficient.

    · RO membranes require 0.25–0.7 MPa to reduce dissolved solids effectively.

4: Initial TDS rebound (normal)

    · Fresh RO systems may take 1–3 gallons of water production to stabilize.

5: Old or exhausted membrane

    · Replace if over 1–2 years of use or if TDS doesn’t drop despite proper installation.

Yes, the U03 can supply RO water to both your faucet and refrigerator.

Required part:

3/8" 3-way splitter (connects to ¼" RO outlet).

Connection layout: 

U03 Pure Water Outlet → Splitter →

→ Line 1: RO Faucet

→ Line 2: Refrigerator / Ice Maker

Low water flow is typically caused by either low inlet pressure, clogged pre-filters, or incorrect installation.

Common causes & solutions:

1: Inlet water pressure is below 0.25 MPa.

       · RO membranes require adequate pressure to maintain normal flow.

       · If the pressure is too low, clean water output will decrease significantly.

 2: Pre-filter or carbon filter is nearing end of life.

       · Sediment and chlorine buildup restrict flow.

       · Replace filters if they are past 6–12 months of use.

 3: Air trapped inside the system.

       · After installation or filter change, flush for 5–10 minutes.

 4: Kinked or bent water lines.

       · Inspect tubing to ensure smooth water delivery.

A low reading typically means insufficient incoming water pressure or restricted flow inside the system. 

What to check: 

    · Ensure your supply line provides 0.25–0.7 MPa (36–102 PSI).

    · Confirm the valve is fully open.

    · Check that filters are not clogged.

    · Inspect for leaks or loose fittings.

If the reading remains below normal, it may be time to replace the PPC filter or RO membrane.

This is normal and intentional. The pressure gauge is oil-filled to:

    · Prevent needle vibration.

    · Improve reading accuracy.

    · Extend gauge lifespan.

    · Provide stable performance under fast pressure fluctuations

The liquid is harmless, sealed, and does not interact with your water supply.

No. The U03 must be installed upright only to ensure:

    · Proper internal water flow.

    · Accurate TDS readings.

    · Optimal RO membrane performance.

    · Avoidance of trapped air pockets.

    · Prevention of structural stress on internal components.

Installing the unit horizontally may result in reduced filtration efficiency and potential leakage.

Typical filter life is:

    · Stage 1 (Nano-Alumina): ~3–6 months, depending on sediment load.

    · Stage 2 (GAC Carbon): ~6 months.

    · Stage 3 (Carbon Block): ~6 months.

If your water is very dirty or from a well, you may need to replace the pre-filter more frequently.

The Glacier Fresh RVWP03 uses premium, corrosion-resistant materials engineered specifically for outdoor RV environments and high-pressure water systems.

 · Filter Housing: Made of corrosion-resistant stainless steel, durable under high pressure and outdoor conditions (40 °F–125 °F).

    · Frame: Polycarbonate-carbon-fiber composite — very strong yet lightweight.

    · Internal Parts: Use food-grade silicone O-rings, aluminum support tubes, and ABS brackets, ensuring leak resistance and longevity.

Yes. The RV003 targets these contaminants through multi-stage filtration, though removal efficiency varies by type.

Lead (Pb) ＞99%

Carbon block adsorption + ionic binding

NSF/ANSI 42

Pesticides ＞95%

GAC carbon adsorption

Independently tested

PFAS(PFOA/ PFOS) 70-85%

Carbon block adsorption

Independently lab data

Yes—but with conditions. The RVWP03 can effectively treat moderate well or pond water, especially when paired with a water softener for high-mineral areas.

Yes. The RVWP03 is engineered for universal compatibility across virtually all RV models, thanks to its pressure-optimized design and standard 3/4" GHT connections.

Fully compatible with: 

    · Motorhomes (Class A, B, C)

    · Travel Trailers & Fifth Wheels

    · Camper Vans & Pop-Tops

    · Boats & Off-Grid Cabins

  1: Use Teflon (PTFE) tape on male-thread fittings.

    2: Ensure O-rings are clean, intact, and properly seated.

    3: Reconnect the tubes firmly until they “click.”
If problems persist, Glacier Fresh support can send replacement parts.

1: Unscrew each filter housing by hand (or use the included wrench).

    2: Remove used cartridges and insert new ones, making sure O-rings sit properly.

    3: Tighten the housings securely (but don’t overtighten).
    4: Flush the system for 2–3 minutes after replacing to remove any loose carbon.

Here`s the video:

Replacement filter for RVWP03 video

It’s likely caused by carbon fines (tiny particles) from new filters, or trapped air. Run fresh water through the system for 3–5 minutes to flush out these particles. If taste persists beyond flushing, check your pre-filter or consult support.

  1: Use a shorter or higher-quality hose (less than 25 ft recommended).

  2: Remove unnecessary splitters or adapters.

  3: Install a pressure regulator or use a small water pump to boost input pressure.
These steps often significantly improve flow and system performance.

Because of its three layers, this system:

    1: Removes sediment and rust → prevents gritty or muddy taste.

    2: Adsorbs chlorine, VOCs, and organic chemical smells.

    3: Polishes the final water through a carbon block, eliminating musty, earthy, or sulfur-related flavors.

The result: water tastes much cleaner, crisper, and more like bottled spring water.

All models include:

    · Glass pitcher 

    · Color-matched ABS liner 

    · Anti-slip silicone base 

    · Quick-start user guide

Filter Included (Varies by Model):

    · P01: Ultrafilter + carbon fiber

    · P02: Ultrafilter + carbon fiber

    · P04: Single carbon block

Yes. Purela pitchers are engineered for safe temperature transitions within reason. 

Performance Ratings

    · Thermal Shock Resistance: 120°C differential

    · Boiling Water Safe: Can accept 100°C water

    · Glass Type: Borosilicate 3.3

    · Pressure Rating: Withstands 6.5 bar 

Do NOT expose pitcher to: 

    · Direct flame 

    · Stovetop heating 

    · Freezing temperatures 

    · Dry heating

All Purela pitchers use a high-borosilicate glass body — the same grade used in laboratory equipment.

Purela™ pitchers come in three models, all crafted from premium high-borosilicate glass. Below are accurate technical specifications:

Purela P01 — 7-Cup Glass Water Filter Pitcher

    · Dimensions: 11.26" (H) × 6.46" (W) × 5.39" (L)

    · Empty Weight: 3.04 lbs

    · Filter System: Dual-filter (UF membrane + carbon) 

Key Notes:

    · Compact footprint—ideal for small fridges or single users

    · Square base for easy grip

    · Shatter-resistant glass + silicone protective base

Purela P02 — 10-Cup Glass Water Filter Pitcher

    · Dimensions: 11.38" (H) × 7.44" (W) × 5.67" (L)

    · Empty Weight: 3.95 lbs

    · Filter System: Dual-filter (UF membrane + carbon) 

Key Notes:

    · Larger capacity for families

    · Wider base for more stability

    · Same glass construction as the P01

Purela P04 — 10-Cup Glass Water Filter Pitcher

    · Dimensions: 11.38" (H) × 7.44" (W) × 5.67" (L)

    · Empty Weight: 3.24 lbs

    · Filter System: Single-stage carbon filter 

Key Notes:

    · Same size as P02

    · Lighter due to simplified filtration stage

Full pitcher weight (when filled)

Water ≈ 0.065 lbs/oz

    · P01 (57 oz full): ~6.74 lbs

 · P02 / P04 (114 oz full): ~10.65–11.36 lbs

Yes. Purela filters undergo third-party testing following NSF protocols. Purela P01 & P02 — Dual-Stage Filters 

Certified under NSF/ANSI 42 & 53 for: 

    · PFOS/PFOA: 96.65% reduction 

    · Chlorine: >99.5% reduction 

    · Total coliforms (E. coli): >91% reduction at startup 

Purela P04 — Single Carbon Filter

Certified under NSF/ANSI 42 for:

    · Chlorine: >99.5% reduction 

If damaged on arrival: 

    · Free replacement. 

    · No return needed. 

    · Must report within 7 days. 

    · Provide photos of pitcher + packaging. 

If cracked after use: 

    · Replacement available. 

    · Buyer pays shipping ($35–45).

Standard 3-Step Setup 

    1: Prepare filters: soak filters in cool water for 2 minutes; 

    2: Prime filters: Fill reservoir twice → discard both batches;

    3: Start using: Water becomes drink-ready on third fill;

Here`s the video: https://www.youtube.com/shorts/PZcXcgteJXk

Normal reasons: 

    · Carbon dust from new carbon filter 

    · Air trapped in UF membrane pores 

Solution: 

    · Flush at least 1.5 liters 

    · Discard first pitcher

Before storage:

    · Shake out water. 

    · Air-dry 48 hours. 

    · Seal with desiccant. 

When restarting: 

    · Soak filter for 1 hour. 

    · Flush 1 full pitcher. 

    · Test flow (10 cups < 2 minutes = normal).

The 3-stage RO membrane removes over 99% of harmful contaminants, including:

    · Heavy metals: lead, arsenic, chromium, mercury 

    · Microorganisms: bacteria, viruses, cysts, protozoa 

    · Chemicals: PFAS, pharmaceuticals, pesticides, herbicides, VOCs

    · Dissolved solids: fluoride, nitrates, salts        

    · Physical particles: microplastics, rust, sediment 

All materials are FDA-compliant, CA65-tested, SGS and meet RO performance standards.

RVRO01 is suitable for: 

    · Campground faucets. 

    · RV/camper water tanks. 

    · Lakes, rivers, streams. 

    · Rain collection barrels. 

    · Emergency water sources during outages. 

Note: Short-term brackish or seawater use is possible but requires immediate freshwater flushing to protect membrane life.

Yes. RVRO01 is designed for significant TDS reduction. 

    · Typical output: 10–50 ppm. 

    · Reduction rate: Up to 99%, depending on source water. 

A 2-gallon first flush is required to activate the RO membrane and stabilize readings. Beneficial minerals may remain, which contributes to the final TDS value.

The system delivers up to 15.6 L/h (4.1 gal/h) in standard conditions. 

    · Per kettle: 2.25 L fills in under 9 minutes 

    · Per water bottle (500 ml): ~2 minutes 

Actual flow may vary based on temperature and power supply voltage.

Absolutely. RVRO01 is engineered for mobility and off-grid environments. 

    · Compact footprint: 120 × 384.5 × 378 mm. 

    · Lightweight: ~6.35 kg (14 lbs). 

    · Travel-ready: Comes with a padded, waterproof storage bag for the main unit, tubing, power bank, and accessories.

    · Flexible use: Works with campground taps, RV tanks, lakes, rivers, or emergency water sources. 

Unzip the case, connect tubing, power on, and start purifying anywhere.

A full charge typically produces 26–30 liters (6.8–8 gallons) of purified water—around 11–13 full kettles. 

Actual performance may vary based on: 

    · Water temperature 

    · Source water quality 

    · Power bank voltage stability 

For best results, recharge when the bank reaches 20% remaining power.

Yes. RVRO01 supports third-party power banks that meet the system’s energy needs: 

    · Must support 24V output via USB-PD or PPS. 

    · Minimum 30W sustained output.

    · Use the included USB-C to DC cable. 

Standard 5V/9V/12V/20V power banks will not power the unit. Most laptop-class power banks with PD 24V mode are compatible.

Yes. The interface is designed for instant clarity: 

    · Jug Icon: Jug aligned / misaligned.. 

    · Filter Bar: Remaining filter life. 

    · Touch Button: Start/Stop + 10-second reset. 

    · Error Codes: 

        · E01: No water intake. 

        · E03: Timeout. 

        · E09: Communication error. 

A single glance gives you all operational information.

The stainless-steel pre-filter is reusable and rarely needs replacement.

    · Rinse every 1–2 weeks, or after sediment-heavy sources.

    · Replace only if mesh is torn or airflow remains restricted.

For replacements, contact support.            

Yes. All GlacierFresh refrigerator water filters undergo rigorous third-party testing. 

NSF/ANSI 42 – Included in all models. Certified for:

    · Chlorine reduction

    · Taste & odor improvement

    · Structural integrity

    · Material safety (BPA-free, phthalate-free)

NSF/ANSI 53 – Available in select upgraded models. Targets:

    · Lead

    · Mercury

    · Asbestos

    · Cysts

    · PFOS/PFOA

How to verify certification：

    · Check packaging label
    · Check product page on GlacierFresh official website

    · Visit NSF database and search filter model

Important:
“NSF 53” always includes NSF 42 by definition.

GlacierFresh provides equal or superior performance at a lower cost. 

Key Advantages 

    · Same certifications as OEM 

    · Higher-density activated carbon 

    · Tighter production tolerances (±0.01 mm) 

    · FDA-grade EPDM O-rings for longer seal life 

    · Tested to higher pressure (150 PSI) 

Contaminants removed by GlacierFresh vs. OEM: Glacier Fresh captures up to 82 contaminants, often more than OEM equivalents:

    · Herbicides

    · Pesticides

    · Microplastics

    · VOCs 

    · Pharmaceuticals

New carbon filters may require brief flushing. 

Normal reasons:

    · Initial carbon block saturation.

    · O-ring compression.

    · Air trapped inside housing.

Solutions:

    1: Reinstall with a slight 1/8 turn backoff.

    2: Flush 3–5 gallons.

    3: Check water pressure (45–65 PSI recommended). 

This is normal during first use.

Caused by:

    · Air inside carbon block
    · Microscopic carbon fines

Solution:

    · Flush 2–4 gallons
   · Wait 2 hours
    · Flush again

It`s usually a RFID interaction issue (common for GE, Samsung, LG).

Solution:

    · Remove and reinsert filter

    · Try second filter

    · If one filter fails, we replace it for free

    · Provide fridge model for chip update compatibility