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Filter Driers for Refrigeration & Air Conditioning

Welcome to Brooks Parts’ dedicated category for filter driers. Our range of high-efficiency liquid-line, suction-line and bi-flow filter driers from leading brands ensures optimal moisture removal, acid adsorption and particulate filtration—providing reliable protection and improved uptime for all types of refrigeration and air-conditioning systems.

Filter Driers for HVAC & Refrigeration | Brooks Parts
Castel Filter DI308N/4 with Humidity Indicator Castel Filter DI308N/4 with Humidity Indicator

Castel Filter DI308N/4 with Humidity Indicator

Keep your refrigeration and air-conditioning systems running smoothly with the Castel Filter DI308N/4. Featuring SAE ½″ connections and a 191 mm compact body, this filter drier installs easily in tight spaces and provides reliable protection. Integrated Humidity Indicator: Quick visual feedback via color-changing window. SAE...
€56.21
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Castel Filter DI316N/3S with Humidity Indicator Castel Filter DI316N/3S with Humidity Indicator

Castel Filter DI316N/3S with Humidity Indicator

Safeguard your refrigeration and air-conditioning equipment from moisture and particulates with the Castel Filter DI316N/3S. Its integrated humidity indicator offers immediate, color-coded feedback on system moisture levels, enabling proactive maintenance to prevent compressor damage and refrigerant loss. Built-In Humidity...
€60.48
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Castel Filter DI316N/4S with Humidity Indicator Castel Filter DI316N/4S with Humidity Indicator

Castel Filter DI316N/4S with Humidity Indicator

Safeguard your refrigeration and air-conditioning equipment from moisture and contaminants with the Castel Filter DI316N/4S. Its built-in humidity indicator provides immediate, color-coded feedback on system moisture levels, allowing for prompt maintenance to prevent compressor damage and refrigerant loss. Integrated Humidity...
€62.20
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Castel Filter DI316N/5 with Humidity Indicator Castel Filter DI316N/5 with Humidity Indicator

Castel Filter DI316N/5 with Humidity Indicator

Safeguard your refrigeration and air-conditioning systems from moisture and debris with the Castel Filter DI316N/5. Its built-in humidity indicator provides instant color-coded feedback on moisture levels, enabling proactive maintenance to prevent compressor damage and refrigerant loss. Integrated Humidity Indicator: Color-changing...
€66.07
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Castel Filter DI316N/M12S with Humidity Indicator Castel Filter DI316N/M12S with Humidity Indicator

Castel Filter DI316N/M12S with Humidity Indicator

Safeguard your refrigeration and air-conditioning systems from moisture and contaminants with the Castel Filter DI316N/M12S. Its integrated humidity indicator provides instant, color-coded feedback on moisture levels, enabling proactive maintenance to prevent compressor damage and refrigerant loss. Built-In Humidity Indicator:...
€62.20
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Castel Filter DI330N/4S with Humidity Indicator Castel Filter DI330N/4S with Humidity Indicator

Castel Filter DI330N/4S with Humidity Indicator

Ensure optimal performance and longevity of your refrigeration and air-conditioning systems with the Castel Filter DI330N/4S. Featuring an integrated humidity indicator, it provides immediate visual feedback on moisture levels, so you can perform maintenance before damage occurs. Built-In Humidity Indicator: Color-changing window...
€85.78
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Castel Filter DI330N/5 with Humidity Indicator Castel Filter DI330N/5 with Humidity Indicator

Castel Filter DI330N/5 with Humidity Indicator

Ensure reliable performance of your refrigeration and air-conditioning equipment with the Castel Filter DI330N/5. Featuring integrated humidity indication and standard SAE 5/8″ connections, this inline filter drier provides clear, color-coded feedback on moisture levels to prevent system damage. Integrated Humidity Indicator:...
€93.00
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Castel Filter DI330N/5S with Humidity Indicator Castel Filter DI330N/5S with Humidity Indicator

Castel Filter DI330N/5S with Humidity Indicator

Safeguard your refrigeration and air-conditioning equipment from moisture and contaminants with the Castel Filter DI330N/5S. Its built-in humidity indicator delivers instant visual feedback, while the dual ODS 5/8″ & 16 mm connections and 293.5 mm body ensure secure installation in tight spaces. Integrated Humidity Indicator:...
€93.00
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Castel Filter DI330N/6 with Humidity Indicator Castel Filter DI330N/6 with Humidity Indicator

Castel Filter DI330N/6 with Humidity Indicator

Protect your refrigeration and air-conditioning systems from moisture and debris with the Castel DI330N/6 Filter Drier, featuring an integrated humidity indicator. Its robust desiccant core traps moisture and particulates, while the color-changing window gives instant visual feedback—so you know exactly when service is needed....
€97.47
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Castel Filter DI330N/6S with Humidity Indicator Castel Filter DI330N/6S with Humidity Indicator

Castel Filter DI330N/6S with Humidity Indicator

Ensure the longevity and efficiency of your refrigeration and air-conditioning systems with the Castel Filter DI330N/6S. This inline filter drier combines a high-capacity desiccant core with a built-in humidity indicator window, giving you instant visual confirmation of moisture levels so you can service before damage occurs....
€97.47
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Castel Filter DI330N/7S with Humidity Indicator Castel Filter DI330N/7S with Humidity Indicator

Castel Filter DI330N/7S with Humidity Indicator

Ensure the reliability and longevity of your refrigeration and air-conditioning systems with the Castel Filter DI330N/7S. This inline filter drier combines a high-capacity desiccant core with a built-in humidity indicator window, giving you instant visual notification of moisture levels so you can service before damage occurs....
€102.05
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Castel Filter DI341N/4S with Humidity Indicator Castel Filter DI341N/4S with Humidity Indicator

Castel Filter DI341N/4S with Humidity Indicator

Protect and prolong the life of your refrigeration and air-conditioning systems with the Castel Filter DI341N/4S. This inline filter drier features a built-in humidity indicator for immediate moisture diagnostics, plus 1/2″ ODS connections and a compact 290 mm body for easy installation. Integrated Humidity Indicator: Color-changing...
€124.00
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Castel Filter DI341N/5 with Humidity Indicator Castel Filter DI341N/5 with Humidity Indicator

Castel Filter DI341N/5 with Humidity Indicator

Ensure the reliability and longevity of your refrigeration and air-conditioning systems with the Castel Filter DI341N/5. This inline filter drier features an integrated humidity indicator window that provides instant, color-coded feedback on moisture levels, enabling proactive maintenance and preventing system damage. Integrated...
€135.99
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Castel Cartridge 4490/A – 800 cm³ Filter Drier Castel Cartridge 4490/A – 800 cm³ Filter Drier

Castel Cartridge 4490/A – 800 cm³ Filter Drier

Maintain optimal system performance and prevent moisture-related damage with the Castel Cartridge 4490/A. This inline filter drier features an 800 cm³ (48 cu in) desiccant core that efficiently removes water and particulates from refrigerant circuits. High Capacity: 800 cm³ desiccant volume for extended moisture trapping. Cartridge-Style Housing: Compact...
€25.71
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Sporlan Filter C-032S | Solid Cartridge Filter, 1/4″ (6 mm), 97 mm Sporlan Filter C-032S | Solid Cartridge Filter, 1/4″ (6 mm), 97 mm

Sporlan Filter C-032S – Solid Cartridge, 1/4″ (6 mm) Connection, 97 mm Length

Ensure peak performance and protection for your refrigeration or air-conditioning system with the Sporlan Filter C-032S solid cartridge. Engineered for precision filtration, this filter offers a compact 97 mm length and 44 mm outer diameter, fitting seamlessly into systems with a 1/4″ (6 mm) inlet/outlet. Manufactured in China under strict quality...
€22.16
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Sporlan Filter C-083S | Solid Cartridge Filter, 3/8″ (10 mm), 133 mm Sporlan Filter C-083S | Solid Cartridge Filter, 3/8″ (10 mm), 133 mm

Sporlan Filter C-083S – Solid Cartridge, 3/8″ (10 mm), 133 mm Length

Maintain optimal efficiency in refrigeration and air-conditioning systems with the Sporlan Filter C-083S solid cartridge. Designed for a 3/8″ (10 mm) inlet/outlet, this precision filter measures 133 mm in length and 67 mm in outer diameter, fitting compact installations without compromise. Manufactured in China under strict quality controls, its...
€31.81
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Sporlan Filter C-052 | 1/4″ SAE Solid Cartridge Filter, 121 mm Sporlan Filter C-052 | 1/4″ SAE Solid Cartridge Filter, 121 mm

Sporlan Filter C-052 – 1/4″ SAE Solid Cartridge, 121 mm Length

Maintain peak efficiency in refrigeration and air-conditioning systems with the Sporlan Filter C-052 solid cartridge. Designed for a 1/4″ SAE inlet/outlet, this precision filter measures 121 mm in length and 62 mm in outer diameter, fitting compact installations without compromise. Manufactured in China under rigorous quality controls, its solid-cartridge...
€25.92
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Sporlan Filter C-052S | Solid Cartridge Filter, 1/4″ (6 mm), 106 mm Sporlan Filter C-052S | Solid Cartridge Filter, 1/4″ (6 mm), 106 mm

Sporlan Filter C-052S – Solid Cartridge, 1/4″ (6 mm) Connection, 106 mm Length

Protect your refrigeration and air-conditioning systems with the Sporlan Filter C-052S solid cartridge. Designed for a 1/4″ (6 mm) inlet/outlet, this compact filter measures 106 mm in length and 62 mm in diameter, making it ideal for tight installations. Manufactured in China under strict quality standards, its solid-cartridge design traps contaminants...
€25.92
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Sporlan Filter C-082 | 1/4″ SAE Solid Cartridge Filter, 143 mm Sporlan Filter C-082 | 1/4″ SAE Solid Cartridge Filter, 143 mm

Sporlan Filter C-082 – 1/4″ SAE Solid Cartridge, 143 mm Length

Keep your refrigeration and air-conditioning equipment running at peak efficiency with the Sporlan Filter C-082 solid cartridge. Engineered for a 1/4″ SAE inlet/outlet, this precision filter measures 143 mm in length and 67 mm in diameter, making it perfect for tight or space-constrained installations. Manufactured in China under rigorous quality...
€30.90
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Sporlan Filter C-083 | 3/8″ SAE Solid Cartridge Filter, 154 mm Sporlan Filter C-083 | 3/8″ SAE Solid Cartridge Filter, 154 mm

Sporlan Filter C-083 – 3/8″ SAE Solid Cartridge, 154 mm Length

Ensure optimal operation of your refrigeration and air-conditioning systems with the Sporlan Filter C-083 solid cartridge. Designed for a 3/8″ SAE inlet/outlet, this precision filter measures 154 mm in length and 67 mm in diameter, making it ideal for both compact and standard installations. Manufactured in China under stringent quality standards, its...
€30.90
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Sporlan Filter C-163 | 3/8″ SAE Solid Cartridge Filter, 171 mm Sporlan Filter C-163 | 3/8″ SAE Solid Cartridge Filter, 171 mm

Sporlan Filter C-163 – 3/8″ SAE Solid Cartridge, 171 mm Length

Ensure reliable performance and protection for your refrigeration and air‐conditioning systems with the Sporlan Filter C-163 solid cartridge. Engineered for a 3/8″ SAE inlet/outlet, this precision filter measures 171 mm in length and 76 mm in outer diameter, making it ideal for both compact and standard installations. Manufactured in China under...
€39.54
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Filter C-164 HH | 1/2″ SAE Catch-All Filter, 176.3 mm × 76.2 mm Filter C-164 HH | 1/2″ SAE Catch-All Filter, 176.3 mm × 76.2 mm

Filter C-164 HH – 1/2″ SAE Catch-All Filter, 176.3 mm Length × 76.2 mm Ø

Ensure reliable protection for your refrigeration and air-conditioning equipment with the Filter C-164 HH catch-all filter. Designed for a 1/2″ SAE inlet/outlet and measuring 176.3 mm in length with a 76.2 mm outer diameter, this filter traps carbon particles and debris that cause burnings. Manufactured in the USA to exacting standards, its robust...
€61.49
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Sporlan Filter C-082S | 1/4″ (6 mm) Solid Cartridge, 130 mm Sporlan Filter C-082S | 1/4″ (6 mm) Solid Cartridge, 130 mm

Sporlan Filter C-082S – Solid Cartridge, 1/4″ (6 mm) Connection, 130 mm Length

Ensure optimal performance and longevity of your refrigeration or air-conditioning system with the Sporlan Filter C-082S solid cartridge. Designed for a 1/4″ (6 mm) inlet/outlet, this precision filter measures 130 mm in length and 67 mm in outer diameter, fitting neatly into space-constrained installations. Manufactured under strict quality controls, its...
€30.90
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Why Choose a Quality Filter Drier?

A professional-grade filter drier is more than just an optional component—it’s essential for system longevity and efficiency:

  • Moisture Removal
    Prevents ice formation in expansion valves and minimizes acid corrosion throughout the circuit.

  • Acid Filtration
    Adsorbs harmful organic and inorganic acids that form over time, safeguarding compressor internals.

  • Particulate Capture
    Traps metal shavings, pipe scale and debris to protect delicate components and extend service intervals.

  • System Reliability
    Reduces downtime, maintenance costs and refrigerant loss, ensuring consistent performance under all operating conditions.

Our Brands & Product Lines

Danfoss

  • DMB Series
    100 % molecular-sieve core designed for HFC/HCFC refrigerants with POE oil; exceptional moisture capacity for commercial and industrial systems.

  • DML/DCL Hermetic
    Fully sealed design optimized for automotive and HVAC applications; rated up to 46 bar; available with flare or copper connections; withstands high vibration environments.

  • DB/DBU Bi-Flow
    Built-in check-valve technology for reversible heat-pump and VRF systems; captures contaminants in either flow direction without bypass risk.

Castel

  • Classic Solid-Core (DF Series)
    Robust steel body with nickel-plated or copper (Cu-DHP) solder/flared ends; rated up to 50 bar; compatible with R22, R134a, R404A, R290 and HFO blends.

  • Hermetic MS-Compacted Bead
    Replaceable molecular-sieve core pressed for maximum capacity; TÜV and PED certified; solder or flare connections for versatile installation.

  • Polyhedra Series
    Engineered specifically for natural refrigerants (HCs); replaceable core design; rated to 50 bar; ideal for eco-friendly and low-GWP systems.

DENA

  • SM Series Copper Filter Drier
    Entirely copper body (Cu 99.9 DHP) with universal molecular-sieve core; temperature range –40 °C to +80 °C; core volumes from 80 cm³ to 670 cm³; ODS-solder or SAE-flare connections.

  • Liquid-Line Ice-Machine Driers
    Compact inline designs with integrated back-valve options; tailored for high-purity loops and specialty refrigeration circuits in food-service equipment.

How to Select the Right Filter Drier

  1. Refrigerant & Oil Compatibility
    Match the core material to your refrigerant (HFC/HCFC vs. natural) and lubricant type (POE, PAG, mineral).

  2. Maximum Working Pressure
    Verify whether your system requires up to 46 bar (Danfoss) or up to 50 bar (Castel, DENA).

  3. Flow Configuration
    Choose liquid-line for pre-expansion protection, suction-line for compressor safety or bi-flow for reversible heat-pump systems.

  4. Core Style
    Decide between hermetic (sealed) cores for simplicity or replaceable-core designs for lower life-cycle cost.

  5. Connection Type
    Select flare or solder joints and body material (copper vs. steel) based on installation practices and vibration exposure.

Shop Filter Driers at Brooks Parts

Protect your investment and maximize system reliability with genuine filter driers from Danfoss, Castel and DENA. Browse detailed specifications, compare product lines and order online today. For tailored recommendations or technical support, please contact our experts.