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List of products by brand Castel

We offer components from Castel Engineering for professional refrigeration and air conditioning work. Their range focuses on practical installation and finishing solutions used in cold rooms, freezers and cleanrooms, as well as accessories for heat pumps and split air conditioning units.

If you’re maintaining an existing installation or building a new project, the right profiles, ducts and protective elements help improve hygiene, durability and day-to-day usability.

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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Castel Tapered Copper Gasket 3/8″ Castel Tapered Copper Gasket 3/8″

Castel Tapered Copper Gasket 3/8″

Tapered Profile: Ensures uniform sealing on flared and SAE joints. High-Purity Copper: Malleable yet corrosion-resistant for long service life. 3/8″ Standard Size: Fits common refrigeration and HVAC fittings without adapters. Professional Grade: Castel model 7580/3, engineered for critical applications. Trust Castel’s precision components to maintain...
€0.41
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Castel Safety Valve 30 bar – ⅜″ NPT to ½″ SAE Castel Safety Valve 30 bar – ⅜″ NPT to ½″ SAE

Castel Safety Valve 30 bar – ⅜″ NPT to ½″ SAE

Safeguard your refrigeration and HVAC systems with the Castel 30 bar Safety Valve. Designed for precise pressure relief, this valve features a ⅜″ NPT inlet and a ½″ SAE outlet to discharge excess pressure safely and prevent system damage. 30 bar Relief Rating: Accurately calibrated to activate at specified overpressure....
€58.85
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Castel 230 V HF2 Coil – Cooling System Solenoid Valve Castel 230 V HF2 Coil – Cooling System Solenoid Valve

Castel 230 V HF2 Solenoid Valve Coil for Cooling Systems

Ensure your ice-making and refrigeration systems run smoothly with the Castel 230 V HF2 Coil. Rated for continuous-duty at 50/60 Hz and protected by an epoxy-sealed housing, this coil keeps critical valves operating reliably—even in moist, low-temperature environments. Features & Benefits 230 V AC, 50/60 Hz: Standard power for commercial...
€22.67
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1/4″ SAE Cap Valve | Castel Italy for Hermetic Unit 6010/2 1/4″ SAE Cap Valve | Castel Italy for Hermetic Unit 6010/2

1/4″ SAE Cap Valve for Hermetic Units – Italian-Made by Castel

The Castel 1/4″ SAE Cap Valve delivers a dependable seal for hermetic refrigeration units, model 6010/2. Manufactured in Italy from premium brass alloy, it offers exceptional corrosion resistance and maintains a secure, leak-proof closure under high pressure. Key Features Compatibility: Hermetic unit 6010/2 Thread Standard: 1/4″ SAE...
€22.06
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Castel Dehydrator Filter 4308/3 – Anti-Acid, 3/8" SAE Castel Dehydrator Filter 4308/3 – Anti-Acid, 3/8" SAE

Castel Anti-Acid Dehydrator Filter 4308/3 – 3/8" SAE, 154×52 mm

Optimize the longevity and efficiency of your refrigeration system with the Castel Anti-Acid Dehydrator Filter 4308/3. Engineered in Italy, this filter features a robust ø 52 mm×154 mm copper body and a solid-cartridge design (Code INT.083) to remove moisture and acidic contaminants. The 3/8" SAE connection ensures a secure fit, while the 130 cm³ nominal...
€35.88
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Castel 4303/2F Anti-Acid Dehydrator Filter – 1/4″ SAE Castel 4303/2F Anti-Acid Dehydrator Filter – 1/4″ SAE

Castel Anti-Acid Dehydrator Filter 4303/2F – 1/4″ MF SAE, 92×52 mm

Extend the life of your refrigeration and HVAC/R equipment with the Castel Anti-Acid Dehydrator Filter 4303/2F. Precision-engineered in Italy, this compact filter features a ø 52 mm × 92 mm copper housing, 1/4″ MF SAE connection, and a solid-cartridge design to remove moisture and acidic contaminants. With a 50 cm³ nominal volume, it prevents corrosion,...
€23.58
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Castel 4305/2F Anti-Acid Dehydrator Filter – 1/4″ SAE Castel 4305/2F Anti-Acid Dehydrator Filter – 1/4″ SAE

Castel Anti-Acid Dehydrator Filter 4305/2F – 1/4″ MF SAE, 109×52 mm

Protect your refrigeration and HVAC/R systems from moisture and acidic contaminants with the Castel Anti-Acid Dehydrator Filter 4305/2F. Made in Italy, this precision filter features a durable ø 52 mm × 109 mm copper body, standard 1/4″ MF SAE fitting, and a solid-cartridge desiccant. Its 80 cm³ nominal volume efficiently absorbs water and...
€31.71
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Castel 4308/3F Anti-Acid Dehydrator Filter – 3/8″ SAE Castel 4308/3F Anti-Acid Dehydrator Filter – 3/8″ SAE

Castel ANTI-ACID DEHYDRATOR FILTER 4308/3F

Protect your refrigeration and HVAC/R systems from moisture and acidic contaminants with the Castel Anti-Acid Dehydrator Filter 4308/3F. Made in Italy, this robust filter features a ø 52 mm × 142 mm copper body, standard 3/8″ MF SAE connection, and a solid-cartridge desiccant packed with 130 cm³ of media. It effectively removes water and acids, preventing...
€35.17
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Castel 4303EX/2S Dehydrator Filter – 6 mm, 52×94 mm Castel 4303EX/2S Dehydrator Filter – 6 mm, 52×94 mm

Castel Dehydrator Filter 4303EX/2S – 1/4″–6 mm, 52 × 94 mm

Ensure reliable performance of hydrocarbon (HC) refrigeration systems with the Castel Dehydrator Filter 4303EX/2S. Manufactured in Italy, this compact filter features a 1/4″–6 mm connection, a ø 52 mm × 94 mm copper housing, and a stiff desiccant cartridge (code INT.032) with 50 cm³ nominal volume. It’s compatible with R290, R600, and R600a refrigerants,...
€27.75
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Castel 4308/2F Anti-Acid Dehydrator Filter – 1/4″ SAE, 52×135 mm Castel 4308/2F Anti-Acid Dehydrator Filter – 1/4″ SAE, 52×135 mm

Castel Anti-Acid Dehydrator Filter 4308/2F – 1/4″ FM SAE, 52×135 mm

Protect your refrigeration circuit from acid and moisture with the Castel Anti-Acid Dehydrator Filter 4308/2F. Made in Italy, this precision filter features a 1/4″ FM SAE connection, a ø 52 mm copper body, and a 135 mm length. Equipped with a 130 cm³ solid cartridge desiccant, it effectively traps acid and moisture to prevent system corrosion, ice...
€35.17
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Castel 4316/5 & Dena 165/MG244 Dehydrator Filter – 5/8″ SAE Castel 4316/5 & Dena 165/MG244 Dehydrator Filter – 5/8″ SAE

Castel ANTI-ACID DEHYDRATOR FILTER 4316/5

Safeguard your refrigeration circuit against acid and moisture with the Castel 4316/5 & Dena 165/MG244 Anti-Acid Dehydrator Filter. Made in Italy, this robust filter features a 5/8″ SAE male fitting, a ø 73 mm copper body, and a 183 mm length. Its 250 cm³ solid-cartridge desiccant rapidly traps acids and water vapor to prevent corrosion, icing, and...
€52.34
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Castel DF303/2S Dehydrator Filter – 1/4″ ODS, 50 cm³ Castel DF303/2S Dehydrator Filter – 1/4″ ODS, 50 cm³

Castel DF303/2S Anti-Acid Dehydrator Filter – 1/4″ ODS, 50 cm³

Maintain the efficiency and longevity of your blast chillers and refrigerated cupboards with the Castel DF303/2S Anti-Acid Dehydrator Filter. Manufactured in China, this robust filter features a solid-cartridge desiccant, standard 1/4″ ODS copper fittings, and a 50 cm³ nominal volume. Specifically designed for ILSA equipment—including ABOG0001, ABOG0006,...
€13.82
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Castel DF316/2 Dehydrator Filter – 1/4″ SAE, 250 cm³ Castel DF316/2 Dehydrator Filter – 1/4″ SAE, 250 cm³

Castel DF316/2 Dehydrator Filter – 1/4″ SAE, 250 cm³

Safeguard your refrigeration and HVAC/R equipment against moisture and acidic contaminants with the Castel DF316/2 Dehydrator Filter. Manufactured in China, this high-capacity filter features a 1/4″ SAE male connection and a large 250 cm³ solid-cartridge desiccant core. Its robust design efficiently traps water vapor and acid by-products, preventing...
€25.82
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Castel DF308/3 Dehydrator Filter – 3/8″ SAE, 130 cm³ Castel DF308/3 Dehydrator Filter – 3/8″ SAE, 130 cm³

Castel DF308/3 Dehydrator Filter – 3/8″ SAE, 130 cm³

Protect your refrigeration and HVAC/R systems from moisture and acidic contaminants with the Castel DF308/3 Dehydrator Filter. Manufactured in China, this filter features a 3/8″ SAE connection and a 130 cm³ solid-cartridge molecular sieve core. Its compact yet high-performance design rapidly absorbs water vapor and acids, preventing corrosion, freeze-ups,...
€21.34
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Castel DF303/3 (4303/3) Dehydrator Filter – 3/8″ SAE Castel DF303/3 (4303/3) Dehydrator Filter – 3/8″ SAE

Castel DF303/3 (4303/3) Dehydrator Filter – 3/8″ SAE, 50 cm³

Ensure reliable operation and extend the life of your refrigeration and HVAC/R systems with the Castel DF303/3 (4303/3) Dehydrator Filter. Engineered in China, this compact filter features a 3/8″ SAE male connection and a solid‐cartridge molecular sieve providing 50 cm³ of desiccant volume. Designed to remove moisture and acidic by-products, it prevents...
€13.82
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Castel DF305/3 (4305/3) Dehydrator Filter – 3/8″ SAE Castel DF305/3 (4305/3) Dehydrator Filter – 3/8″ SAE

Castel DF305/3 (4305/3) Dehydrator Filter – 3/8″ SAE, 80 cm³

Protect your refrigeration and HVAC/R equipment from moisture and acidic contaminants with the Castel DF305/3 (4305/3) Dehydrator Filter. Engineered in China, this high-efficiency filter features a 3/8″ SAE male connection and an 80 cm³ solid-cartridge molecular sieve core. Its robust design rapidly absorbs water vapor and acid by-products, preventing...
€18.50
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Castel Charger Connection Tee MMF – ¼″ SAE x ¼″ SAE x ¼″ SAE Castel Charger Connection Tee MMF – ¼″ SAE x ¼″ SAE x ¼″ SAE

Castel Charger Connection Tee MMF – ¼″ SAE x ¼″ SAE x ¼″ SAE

Optimize refrigerant charging and servicing with the Castel Charger Connection Tee MMF. This compact brass T-union features two female SAE ports (one with a swiveling protective cap and built-in precursor) and one male SAE port with internal threading for seamless tool engagement. Features & Benefits MMF Configuration: Two female and one male ¼″ SAE...
€36.59
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Castel 230 V CM2 Solenoid Valve Coil with Cable Castel 230 V CM2 Solenoid Valve Coil with Cable

Castel 230 V CM2 Solenoid Valve Coil with Cable

Upgrade the reliability of your refrigeration and HVAC solenoid valves with the Castel CM2 coil. Rated for continuous-duty at 230 V AC, 50/60 Hz, and featuring a 1.5 m integrated cable, this coil ensures stable operation in demanding cooling-system environments. Features & Benefits 230 V AC, 50/60 Hz: Standard voltage for commercial cooling...
€36.59
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Castel 230 V HM2 ATEX Solenoid Coil for HC Refrigerants Castel 230 V HM2 ATEX Solenoid Coil for HC Refrigerants

Castel 230 V HM2 ATEX Coil – R290 & R600

Power your refrigeration valves with the Castel 230 V HM2 ATEX Solenoid Coil, specifically designed for Zone 2 hazardous areas and compatible with flammable HC refrigerants (R290, R600). Its epoxy-sealed housing and Class H insulation ensure reliable, continuous-duty performance in demanding environments. Features & Benefits ATEX Zone 2...
€37.00
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Castel 240 V HF2 Coil – Cooling System Solenoid Valve Castel 240 V HF2 Coil – Cooling System Solenoid Valve

Castel 240 V HF2 Solenoid Valve Coil for Cooling Systems

Optimize your refrigeration and HVAC systems with the Castel 240 V HF2 Coil. Designed for continuous-duty operation at 50/60 Hz and protected by an epoxy-sealed housing, this coil withstands moisture and dust for reliable performance in cooling environments. Features & Benefits 240 V AC, 50/60 Hz: Standard voltage for commercial cooling...
€23.28
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Castel DI305N/2 Cooling-Line Filter with Humidity Indicator Castel DI305N/2 Cooling-Line Filter with Humidity Indicator

Castel DI305N/2 Cooling-Line Filter with Humidity Indicator

Ensure dry, contaminant-free refrigerant flow in your cooling systems with the Castel DI305N/2 Cooling-Line Filter. Its integrated humidity indicator provides instant visual feedback on moisture levels, while efficient condensate separation protects downstream components. Features & Benefits Built-In Humidity Indicator: Color-change sight...
€50.21
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Castel DI308N/2 Cooling-Line Filter with Humidity Indicator Castel DI308N/2 Cooling-Line Filter with Humidity Indicator

Castel DI308N/2 Cooling-Line Filter with Humidity Indicator

Keep your refrigeration and air‐conditioning loops free of moisture and contaminants with the Castel DI308N/2 Cooling‐Line Filter. Its built‐in humidity indicator provides instant visual feedback on refrigerant moisture levels, while efficient condensate separation protects downstream equipment. Features & Benefits Integrated Humidity...
€51.02
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About the brand

Castel Engineering manufactures plastic parts and profiles for the HVAC-R industry, with production know-how in injection moulding and profile extrusion. Their product focus is strongly “installer-first”: durable components that speed up installation, protect surfaces and create a clean, professional finish—especially in high-use environments like refrigerated rooms and technical areas.

The company is headquartered in Mouscron, Belgium, and operates within the broader DiversiTech Europe group.

Typical product areas you may need components for

Depending on the installation, Castel Engineering components are commonly used for:

  • Split AC / heat pump installation finishing (ducting and installation accessories)

  • Coldroom and cleanroom protection & hygiene (wall-to-floor hygienic profiles, panel protections, backing profiles)

  • Structural and mounting accessories (ceiling suspensions and related installation parts)

  • Storage and workspace builds (modular shelving solutions)

Why the right components matter

Correct HVAC-R accessories help maintain:

  • Hygiene and easy cleaning (especially in cold rooms and clean areas)

  • Impact protection for panels and high-traffic zones

  • A cleaner finish for visible installations (duct routing and tidy edges)

  • Long-term reliability by reducing wear, movement and damage