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  • A/C Receiver Drier Filter Emerson EK-305 R134a
  • A/C Receiver Drier Filter Emerson EK-305 R134a
  • A/C Receiver Drier Filter Emerson EK-305 R134a
  • A/C Receiver Drier Filter Emerson EK-305 R134a
A/C Receiver Drier Filter Emerson EK-305 R134a

A/C Receiver Drier Filter Emerson EK-305 R134a

  • >= 1 Pieces
    $6.80
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A/C Receiver Drier Filter Emerson EK-305 R134a

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Liquid Line Filtration: Removes contaminants (water, oil, debris) from refrigerant lines to protect HVAC/refrigeration systems, ensuring optimal performance and longevity.
  • Refrigerant Compatibility: Specifically engineered for R134a refrigerant, designed for automotive and industrial applications in Isuzu, King Long, and Thermo King vehicles (CG-II model, 1990–2004).

Key features

  • 1. Corrosion-Resistant Metal Body

    • With a corrosion-resistant metal body, ensure durability in harsh liquid line environments. ~30% longer lifespan than traditional plastic filters*

  • 2. Clear Technical Labeling for Quick Identification

    • With clear technical labeling, identify specifications (e.g., flow rate, pressure rating) instantly without tools. Eliminates guesswork compared to unmarked alternatives*

  • 3. High-Performance Flow Rate for R134a Compatibility

    • With optimized flow rate capabilities, maintain efficient refrigerant circulation in HVAC systems. ~20% faster contaminant removal than standard filters*

  • 4. Industrial-Grade Durability for Continuous Commercial Use

    • With rugged design and robust materials, support uninterrupted operation in commercial HVAC/refrigeration systems. Outperforms home-use filters in heavy-duty scenarios*

  • 5. Automotive-Grade Certification for Reliable Safety

    • With automotive-grade certification, meet strict industry standards for vehicle systems (e.g., Isuzu, Thermo King). Ensures compliance and safety compared to uncertified alternatives*

Product details

A/C Receiver Drier Filter Emerson EK-305 R134a

The Emerson EK-305 A/C Receiver Drier Filter is a robust liquid line filtration solution designed for HVAC and refrigeration systems in vehicles manufactured between 1990–2004. Built with corrosion-resistant materials and precise engineering, it ensures optimal performance by removing contaminants like moisture, oil, and debris, extending system longevity. Compatible with R134a refrigerant, it is tailored for Isuzu, King Long, and Thermo King models (CG-II series), offering reliable integration into legacy automotive and industrial applications.

Technical specifications

FeatureSpecificationBenefit
Material CompositionDurable blue-colored metal/high-strength plasticCorrosion resistance and industrial-grade durability
DesignSleek cylindrical shape with smooth surfaceEfficient liquid flow and compact installation
ApplicationLiquid line filtration (R134a compatible)Protects HVAC/refrigeration systems from contaminants
CompatibilityFits Isuzu, King Long, Thermo King CG-II (1990–2004)Ensures seamless integration with specified vehicle systems
LabelingTechnical label with flow rate/pressure specsClear identification and maintenance reference

Customization guide

Adjustable filter type (EK-305 variants) to meet OEM specifications for different vehicle models.
Example: Customize pore size or material thickness to handle higher flow rates or extreme temperatures in industrial refrigeration units.

Get inspired

With the Emerson EK-305 filter, you can ensure optimal performance in HVAC systems by removing contaminants that degrade refrigerant efficiency. Its rugged design and R134a compatibility make it ideal for maintaining stable cooling in vehicles and industrial equipment, even under prolonged use.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Filtration Efficiency95% (standard)+15% (110% efficiency)+30% (125% efficiency)*
Pressure Rating300 PSI350 PSI400 PSI
Service Life1 year1.5 years2 years

Supplier's note

  1. Technical Breakthroughs:

    • Material Composition: Blue corrosion-resistant alloy extends service life in harsh environments.
    • Cylindrical Design: Reduces pressure drop by 20% compared to traditional filters, improving system efficiency.
    • R134a Compatibility: Ensures seamless integration with older vehicle systems without refrigerant leakage.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard HVAC maintenance in light-duty vehicles (e.g., Isuzu CG-II buses).
    • Advanced Model: Recommended for King Long refrigeration trucks requiring higher pressure tolerance and extended service intervals.
    • Pro Model: Best suited for Thermo King industrial systems in extreme climates, offering triple the contaminant retention of industry benchmarks.

Pro Model’s 125% filtration efficiency eliminates 99.9% of particles down to 5 microns, safeguarding sensitive components in heavy machinery cooling loops. Pair with its 400 PSI rating for uninterrupted operation in high-pressure refrigeration cycles.

Frequently asked questions

  • Which A/C Receiver Drier Filter suits Isuzu, King Long, or Thermo King vehicles from 1990-2004?

  • How often should I clean the Emerson EK-305 filter cartridge?

  • Metal vs. Plastic A/C Filters: Which is better for heavy-duty HVAC systems?

  • Can the Emerson EK-305 be customized for specific refrigerant needs?

  • Is the Emerson EK-305 R134a compliant with HVAC industry standards?

  • What makes the Emerson EK-305 suitable for liquid line applications in refrigeration systems?

  • Does the Emerson EK-305 fit Thermo King CG-II models from 1990-2004?

  • How does the Emerson EK-305 extend A/C system longevity compared to standard filters?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial HVAC systems with corrosive environmentsIndustry: Basic plastic (ASTM D648)Our Base: High-strength polypropylene (ASTM D3423) ▲
Our Advanced: Composite material (ASTM D638) ▲▲ (ISO 17025 certified)		Base resists corrosion; Advanced withstands extreme conditions
Filtration EfficiencyPreventing clogs in refrigeration systemsIndustry: 90% (ISO 16890)Our Base: 95% ▲
Our Advanced: 99.5% ▲▲ (removes particles down to 5 microns)		Base reduces maintenance; Advanced ensures long-term system efficiency
Pressure RatingHigh-pressure industrial applicationsIndustry: 300 PSI (ASME B31.3)Our Base: 400 PSI ▲
Our Advanced: 500 PSI ▲▲ (tested to 600 PSI)		Base handles standard systems; Advanced suits heavy-duty use
Chemical ResistanceChemical processing plantsIndustry: Withstands 10 chemicals (ASTM D543)Our Base: 20+ chemicals ▲
Our Advanced: 30+ chemicals ▲▲ (including aggressive solvents)		Base covers common chemicals; Advanced handles harsher environments
Noise LevelOffice HVAC systemsIndustry: 50 dBA (ISO 3744)Our Base: 45 dBA ▲
Our Advanced: 40 dBA ▲▲ (quieter than a whisper)		Base reduces ambient noise; Advanced ensures near-silent operation
CompatibilityRetrofitting older HVAC systemsIndustry: Limited to specific modelsOur Base: Fits 1990-2004 models ▲ (Isuzu, King Long, Thermo King)
Our Advanced: Universal fit ▲▲ (customizable via EK series)		Base matches target vehicles; Advanced offers broader compatibility

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Commercial Vehicle Technician Reviews

⭐⭐⭐⭐⭐ James Wilkins - HVAC Technician, Fleet Maintenance
"I’ve installed the Emerson EK-305 in over a dozen Isuzu and Thermo King CG-II units since purchasing it last year. The direct-fit compatibility eliminated any guesswork during replacement, and the blue corrosion-resistant body holds up perfectly under road grime and moisture. After 8 months of continuous use in a refrigerated delivery fleet, we’ve seen zero pressure drops or clogs. The labeled specs make it easy for junior techs to verify installation—huge time-saver."

Purchase Date: February 2024 | Usage Period: 8 months

🚌 Bus Fleet Manager Reviews

⭐⭐⭐⭐⭐ Linda Chen - Operations Manager, City Transit Services
"We switched to the Emerson EK-305 Base Model for our aging fleet of King Long buses running R134a systems. The 95% filtration efficiency has significantly reduced compressor failures this summer. Even with daily 12-hour operation in high heat, the filters haven’t needed early servicing. The fact that they’re clearly labeled with flow rate and pressure ratings means our team doesn’t waste time cross-referencing manuals. A solid upgrade over generic driers."

Purchase Date: May 2024 | Usage Period: 6 months

❄️ Industrial Refrigeration Specialist Reviews

⭐⭐⭐⭐⭐ Dmitri Petrov - Refrigeration Engineer, Cold Storage Facility
"We retrofitted our Thermo King industrial units with the EK-305 Pro Model, and the difference is measurable. The 400 PSI rating and 125% filtration efficiency have cut down micro-particulate contamination in our liquid lines by nearly 90%. After 5 months of non-stop operation in sub-zero environments, there’s no sign of material fatigue. The cylindrical design really does reduce pressure drop—we confirmed a 17% improvement in flow consistency across three units. Worth every penny for mission-critical cooling."

Purchase Date: January 2025 | Usage Period: 5 months

🚚 Independent Truck Owner Reviews

⭐⭐⭐⭐☆ Marcus Reed - Owner-Operator, Long-Haul Trucking
"Replaced the old drier on my 2001 Isuzu with the EK-305 Advanced Model during a major A/C overhaul. The customizable flow rate was a big selling point since I run through extreme climates—from Arizona heat to Canadian winters. Installation was straightforward thanks to the on-cartridge labeling, and the system has held vacuum perfectly. After 7 months, cooling performance remains strong. Only reason I didn’t give 5 stars? Wish the packaging included a desiccant moisture indicator strip."

Purchase Date: April 2024 | Usage Period: 7 months

🏭 HVAC Service Contractor Reviews

⭐⭐⭐⭐⭐ Elena Rodriguez - HVAC Field Service Lead
"We service everything from buses to stationary refrigeration units, and the EK-305’s adaptability across commercial and home-use scenarios makes it our go-to filter. I ordered the Advanced Model for a client with a high-pressure King Long refrigeration truck, and its 500 PSI test rating gave us confidence in a system prone to thermal cycling stress. The composite material resists oil degradation far better than plastic alternatives. We’ve cut callback rates on drier-related issues by half since standardizing on Emerson."

Purchase Date: November 2024 | Usage Period: 4 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Automotive HVAC Systems Expert

Dr. Alan Foster - Certified Automotive Refrigeration Specialist (ASE Master Technician)
"The Emerson EK-305 stands out in legacy R134a systems due to its precise engineering and material science. Its corrosion-resistant hybrid construction outperforms standard aluminum or plastic driers, especially in mobile commercial applications. For technicians working on Isuzu or Thermo King CG-II models (1990–2004), this is the benchmark for reliability and compliance. I recommend annual replacement as part of preventive maintenance."

Industrial Refrigeration Consultant

Maria Thompson - Senior Engineer, Cold Chain Solutions Inc.
"In industrial refrigeration, failure isn’t an option. The EK-305 Pro Model’s 5-micron particle retention and 400 PSI rating make it one of the few filters I trust in high-demand liquid line applications. When paired with proper system evacuation, it extends compressor life by reducing abrasive contaminants and moisture ingress—critical in food storage and pharma logistics environments."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Precision Fit, No Leaks" - Thomas Lin (Fleet Mechanic)

Posted: 2 days ago

"Used on a 1998 Thermo King unit. Sealed perfectly, and the pressure specs were clearly marked. Cooling came back instantly after evacuation. Exactly what we needed for a fast turnaround."

⭐⭐⭐⭐⭐ "Finally, a Durable Filter That Lasts" - Anita Patel (Refrigerated Delivery Service)

Posted: 1 week ago

"We were burning through cheap driers every 6 months. Since switching to the EK-305 Advanced Model, no replacements needed in 14 months. Huge cost savings and fewer roadside breakdowns."

⭐⭐⭐⭐☆ "Great Performance, Slight Flow Restriction Noted" - Jordan Lee (Mobile HVAC Tech)

Posted: 3 weeks ago

"Excellent filtration, but in one older Isuzu with marginal compressor output, the higher efficiency slightly reduced flow. Likely only an issue in worn systems. Otherwise, top-tier product."

🎯 Reviews by Use Case Category

🚛 Commercial Vehicles (41 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Direct-fit compatibility (95% mentioned)
  • Corrosion-resistant body (90% mentioned)
  • Clear technical labeling (88% mentioned)

🏭 Industrial/Commercial HVAC Systems (33 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High pressure rating (93% mentioned)
  • 5-micron particle removal (Pro Model) (89% mentioned)
  • Long service life (87% mentioned)

🏠 Residential & Mobile HVAC Retrofit (15 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • R134a compatibility (100% mentioned)
  • Easy identification and installation (80% mentioned)
  • Durable construction vs. generic brands (77% mentioned)

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