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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 DI316N/5S with Humidity Indicator Castel Filter DI316N/5S with Humidity Indicator

Castel Filter DI316N/5S with Humidity Indicator

Safeguard your refrigeration and air-conditioning systems from moisture and contaminants with the Castel Filter DI316N/5S. 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:...
€65.66
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Copper Filter 30 g DENA SM230S309_6,5/2,6 Copper Filter 30 g DENA SM230S309_6,5/2,6

Copper Filter 30 g DENA SM230S309_6,5/2,6

This premium 30 g copper filter, DENA part SM230S309_6,5/2,6, ensures clean, contaminant-free refrigerant flow in your display and neutral-counter cabinets. Machined in Italy, it features 6.5 mm inlet and 2.6 mm outlet fittings, a ø 24 mm body and 140 mm length for precise filtration. Compatible with leading brands—Forcar, Framec and Mondial Framec—this...
€5.18
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DENA Copper Filter 10 g SM210S109 & SM210S809 DENA Copper Filter 10 g SM210S109 & SM210S809

Copper Filter 10 g DENA SM210S109_5,2/2,6 & SM210S809_4,9X2,5

Maintain optimal refrigerant purity in your Whirlpool or Indesit domestic refrigerator with this genuine 10 g copper filter from DENA, part numbers SM210S109_5,2/2,6 and SM210S809_4,9X2,5. Crafted in Italy, it features dual in/out ports (5.2 mm inlet, 2.6 mm outlet), a ø 16 mm body and 112 mm length. The high-purity copper mesh media traps metallic debris...
€2.64
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DENA Copper Filter 10 g SM210S109 & SM210S809 DENA Copper Filter 10 g SM210S109 & SM210S809

Copper Filter 10 g DENA SM210S109_6,5/2,6 & SM210S809_6,5X2,5

Ensure contaminant-free refrigerant flow with this genuine DENA copper filter, parts SM210S109_6,5/2,6 and SM210S809_6,5X2,5. Manufactured in Italy, it contains 10 g of high-purity copper mesh to trap metallic debris and scale. Featuring dual 6.5 mm inlet and 2.6 mm outlet fittings, a ø 16 mm body, and 112 mm length, this filter protects valves and...
€2.64
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Copper Filter 10 g – 3-Way ø16×113 mm Copper Filter 10 g – 3-Way ø16×113 mm

Copper Filter 10 g – 3-Way ø16×113 mm

Maintain peak performance and extend the life of your domestic appliances with this 10 g copper filter, precision-manufactured in Italy. Its three-way design features dual inlets (6.5 mm and 4.5 mm) and a 2.3 mm outlet, Ø 16 mm body and 113 mm length. The high-purity copper mesh media captures metallic debris and scale, preventing blockages in valves,...
€4.17
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DENA Copper Filter 15 g SM215S209 & SM215S909 DENA Copper Filter 15 g SM215S209 & SM215S909

Copper Filter 15 g DENA SM215S209_5,2/2,6 & SM215S909_5,2/2,6

Keep your refrigeration system clean and efficient with this 15 g copper filter from DENA (SM215S209_5,2/2,6 & SM215S909_5,2/2,6). Manufactured in China, it features high-purity copper mesh media that traps metallic debris and scale. The dual-port design (5.2 mm inlet, 2.6 mm outlet), ø 18 mm body and 130 mm length provide precise flow control and...
€1.63
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Copper Filter 15 g DENA 15GR6,35X2,5MM & SM215S209 Copper Filter 15 g DENA 15GR6,35X2,5MM & SM215S209

Copper Filter 15 g DENA 15GR6,35X2,5MM & SM215S209 – 3-Way ø16 × 113 mm

Protect your domestic refrigeration and laundry appliances with this genuine DENA copper filter (15 g), part numbers 15GR6,35X2,5MM and SM215S209. Crafted in Italy, its 3-way design features dual inlets (6.5 mm & 4.5 mm) and a 2.3 mm outlet, Ø 16 mm body and 113 mm length. The high-purity copper mesh media traps metallic debris and scale, preventing...
€2.64
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DENA Copper Filter 15 g SM215S909_6,5×6,5 DENA Copper Filter 15 g SM215S909_6,5×6,5

Copper Filter 15 g DENA SM215S909_6,5×6,5

Maintain pristine refrigerant circulation with the DENA copper filter 15 g, part number SM215S909_6,5×6,5. Crafted in Italy from high-purity copper mesh, it traps metallic debris and scale. Featuring a dual 6.5 mm inlet/outlet configuration, a ø 19 mm body, and a 120 mm length, this filter safeguards valves, compressors, and expansion devices—extending...
€3.86
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DENA Copper Filter 15 g SM315S9096,56,525 DENA Copper Filter 15 g SM315S9096,56,525

Copper Filter 15 g DENA SM315S9096,56,525

Ensure pristine refrigerant flow in your Whirlpool or Indesit domestic refrigerator with the DENA copper filter 15 g, part number SM315S9096,56,525. Made in Italy, its 3-way design features dual 6.5 mm inlets and a 2.5 mm outlet, housed in a ø 19 mm × 125 mm copper body. The high-purity copper mesh media captures metallic debris and scale, protecting...
€4.68
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DENA Copper Filter 20 g SM220S209_5,2/2,6 DENA Copper Filter 20 g SM220S209_5,2/2,6

Copper Filter 20 g DENA SM220S209_5,2/2,6

Ensure smooth, contaminant-free refrigerant flow in your commercial and domestic refrigeration units with the DENA copper filter 20 g, part number SM220S209_5,2/2,6. Made in China to exacting standards, this filter features dual 5.2 mm inlet and 2.6 mm outlet ports, a ø 19 mm body and 141 mm length. Its high-purity copper mesh captures metallic debris and...
€2.64
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DENA Copper Filter 20 g 20GR6,35X2,5MM & SM220S209 DENA Copper Filter 20 g 20GR6,35X2,5MM & SM220S209

Copper Filter 20 g DENA 20GR6,35X2,5MM & SM220S209_6,5/2,6

Ensure clean, debris-free refrigerant flow in your Oztiryakiler equipment with this genuine 20 g copper filter from DENA, part numbers 20GR6,35X2,5MM and SM220S209_6,5/2,6. Crafted in Italy, its dual 6.5 mm inlet and 2.6 mm outlet ports, ø 19 mm body, and 141 mm length deliver precise filtration. The high-purity copper mesh traps metallic particles and...
€3.66
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DENA Copper Filter 25 g SM225S709_6,5×2,5 DENA Copper Filter 25 g SM225S709_6,5×2,5

Copper Filter 25 g DENA SM225S709_6,5×2,5

Ensure optimal refrigerant purity in your cooling system with the DENA copper filter 25 g, part number SM225S709_6,5×2,5. Manufactured in Italy, this precision filter features dual 6.5 mm inlet and 2.5 mm outlet ports, a ø 24 mm body, and a 130 mm length. Filled with 25 g of high-purity copper mesh media, it efficiently traps metallic debris and scale,...
€4.88
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DENA Copper Filter 25 g SM225S709_6,5×6,5 DENA Copper Filter 25 g SM225S709_6,5×6,5

Copper Filter 25 g DENA SM225S709_6,5×6,5

Maintain pristine refrigerant flow and protect critical components with this genuine DENA copper filter, part number SM225S709_6,5×6,5. Made in Italy from high-purity copper mesh, it delivers 25 g of filtration media in a robust ø 24 mm × 130 mm body. Featuring dual 6.5 mm inlet and outlet ports, this filter traps metallic debris and scale, safeguarding...
€4.37
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DENA Copper Filter 30 g SM230S309_6,5/2,6 DENA Copper Filter 30 g SM230S309_6,5/2,6

Copper Filter 30 g DENA SM230S309_6,5/2,6

Maintain peak performance in your refrigerated display and storage units with the genuine 30 g copper filter from DENA, part number SM230S309_6,5/2,6. Crafted in Italy, this filter features dual 6.5 mm inlet and 2.6 mm outlet ports, housed in a ø 24 mm × 140 mm copper body. Filled with high-purity copper mesh media, it effectively traps metallic debris...
€5.18
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DENA Copper Filter 30 g SM230S709 & SM230S309 DENA Copper Filter 30 g SM230S709 & SM230S309

Copper Filter 30 g DENA SM230S709_6,5/3,2 & SM230S309_6,5/3,2

Ensure pristine ice production and protect critical components with this genuine 30 g copper filter from DENA, part numbers SM230S709_6,5/3,2 and SM230S309_6,5/3,2. Manufactured in Italy, it delivers high-purity copper mesh filtration in a robust ø 24 mm × 140 mm body. Featuring dual 6.5 mm inlet and 3.2 mm outlet ports, the filter traps metallic debris...
€4.07
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DENA Copper Filter 30 g SM230S309_6,5/6,5 DENA Copper Filter 30 g SM230S309_6,5/6,5

Copper Filter 30 g DENA SM230S309_6,5/6,5

Maintain peak performance and protect your Zanussi refrigeration equipment with this genuine 30 g copper filter from DENA, part number SM230S309_6,5/6,5. Crafted in Italy, it features dual 6.5 mm inlet/outlet ports, a ø 24 mm body and 140 mm length. Packed with high-purity copper mesh, it captures metallic debris and scale before they reach compressors,...
€4.88
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DENA Copper Filter 30 g SM330S309 – 3-Way ø24×145 mm DENA Copper Filter 30 g SM330S309 – 3-Way ø24×145 mm

Copper Filter 30 g DENA SM330S309

Optimize refrigerant purity and protect your HVAC or refrigeration equipment with the DENA copper filter 30 g, part number SM330S309. Manufactured in Italy, this precision filter features a robust ø 24 mm × 145 mm copper body filled with 30 g of high-purity copper mesh. Its 3-way configuration—dual 6.5 mm inlet ports and a 2.6 mm outlet port—ensures...
€6.00
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Copper Filter 30 g – 3-Way ø24×145 mm Copper Filter 30 g – 3-Way ø24×145 mm

Copper Filter 30 g – 3-Way ø24 × 145 mm

Ensure optimal refrigerant purity and protect critical components with this high-capacity copper filter. Made in Italy, it holds 30 g of high-purity copper mesh media inside a durable ø 24 × 145 mm body. The three-way configuration features dual 6.5 mm inlet ports and a 6.5 mm outlet port to effectively trap metallic debris and scale, safeguarding...
€6.10
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DENA Copper Filter 35 g SM330S309 – 3-Way ø24×170 mm DENA Copper Filter 35 g SM330S309 – 3-Way ø24×170 mm

Copper Filter 35 g DENA SM330S309 – 3-Way ø24×170 mm

Maintain peak performance in your Zanussi refrigeration equipment with this genuine 35 g copper filter from DENA, part number SM330S309. Crafted in Italy, its robust ø 24 mm × 170 mm copper body contains high-purity copper mesh media. The 3-way configuration—dual 6.5 mm inlet ports and a 3.2 mm outlet—captures metallic debris and scale before they reach...
€5.69
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DENA Copper Filter 40 g SM240S709_6,5/2,5 DENA Copper Filter 40 g SM240S709_6,5/2,5

Copper Filter 40 g DENA SM240S709_6,5/2,5

Protect and prolong the life of your HVAC and refrigeration equipment with the DENA copper filter 40 g, part number SM240S709_6,5/2,5. Crafted in Italy, its sturdy ø 24 mm × 170 mm copper body houses 40 g of high-purity copper mesh media. The dual-port design (6.5 mm inlet, 2.5 mm outlet) efficiently traps metallic debris and scale, safeguarding...
€5.90
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DENA Copper Filter 40 g SM240S309_6,5/3,2 DENA Copper Filter 40 g SM240S309_6,5/3,2

Copper Filter 40 g DENA SM240S309_6,5/3,2

Ensure optimal refrigeration performance and protect system components with the DENA copper filter 40 g, part number SM240S309_6,5/3,2. Crafted in Italy, its durable ø 24 mm × 170 mm copper body houses 40 g of high-purity mesh. Featuring dual 6.5 mm inlet ports and a 3.2 mm outlet, it efficiently captures metallic debris and scale, safeguarding...
€6.91
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DENA Copper Filter 40 g SM240S309_6,5/6,5 DENA Copper Filter 40 g SM240S309_6,5/6,5

Copper Filter 40 g DENA SM240S309_6,5/6,5

Protect critical refrigeration and HVAC components with the DENA copper filter 40 g, part number SM240S309_6,5/6,5. Crafted in Italy, its sturdy ø 24 mm × 170 mm copper housing contains 40 g of premium copper mesh. The dual 6.5 mm inlet/outlet ports efficiently trap metallic debris and scale, safeguarding compressors, expansion valves, and evaporators....
€7.32
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DENA Copper Filter 50 g SM250S709_6,2×6,2 DENA Copper Filter 50 g SM250S709_6,2×6,2

Copper Filter 50 g DENA SM250S709_6,2×6,2

Protect your refrigeration and HVAC systems with the DENA copper filter 50 g, part number SM250S709_6,2×6,2. Manufactured in Italy, its robust ø 24 mm × 190 mm copper body holds 50 g of high-purity copper mesh. Featuring dual 6.2 mm inlet and outlet ports, it efficiently captures metallic debris and scale—safeguarding compressors, expansion valves, and...
€6.71
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DENA Copper Filter 50 g SM250S709_8,5×8,5 DENA Copper Filter 50 g SM250S709_8,5×8,5

Copper Filter 50 g DENA SM250S709_8,5×8,5

Upgrade your refrigeration and HVAC maintenance with the DENA copper filter 50 g, part number SM250S709_8,5×8,5. Made in Italy, its durable ø 24 mm × 190 mm copper housing contains 50 g of high-purity copper mesh. Featuring dual 8.5 mm inlet and outlet ports, it efficiently captures metallic debris and scale—protecting compressors, expansion valves, and...
€7.52
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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.