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Castel Humidity Indicator ¼″ MM SAE – Models 3910/22 & 3710/22 Castel Humidity Indicator ¼″ MM SAE – Models 3910/22 & 3710/22

Castel Humidity Indicator ¼″ MM SAE for Cooling Systems

Protect your refrigeration and HVAC loops from moisture damage with the Castel Humidity Indicator ¼″ MM SAE. These Italian-made indicators feature precision brass bodies and an integrated color-change sight glass for instant moisture detection. Features & Benefits Dual Models: Choose between 3910/22 & 3710/22 Standard ¼″ MM SAE: Male...
€27.75
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Castel 5/8″ FM SAE Humidity Indicator (Models 3950/55 & 3750/55) Castel 5/8″ FM SAE Humidity Indicator (Models 3950/55 & 3750/55)

Castel 5/8″ FM SAE Humidity Indicator (Models 3950/55 & 3750/55)

Enhance your HVAC and refrigeration systems with the Castel humidity indicator featuring a 5/8″ FM SAE connection. Designed for fast, reliable moisture detection, this inline device provides clear, color-coded feedback—turning from blue to pink/red—to alert you instantly to moisture ingress. Instant Visual Alerts: Color change from...
€51.43
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Castel Humidity Indicator Ø 10 mm – Models 3940/M10 & 3740/M10 Castel Humidity Indicator Ø 10 mm – Models 3940/M10 & 3740/M10

Castel Humidity Indicator Ø 10 mm (3940/M10 & 3740/M10)

Keep your refrigeration and HVAC systems running smoothly with the Castel Ø 10 mm humidity indicator. Designed for fast, accurate moisture detection, this inline device provides clear, color-coded feedback—turning blue to pink/red—to alert you instantly to moisture ingress. Instant Color Alerts: Visual shift from blue to pink/red...
€41.67
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Castel Humidity Indicator Ø 3/8″ – Model 3940/3 Castel Humidity Indicator Ø 3/8″ – Model 3940/3

Castel Humidity Indicator Ø 3/8″ (Model 3940/3)

Keep your refrigeration and HVAC systems performing at their best with the Castel Ø 3/8″ Humidity Indicator (3940/3). This inline device offers fast, reliable moisture detection by changing color from blue to pink/red, giving you immediate insight into system health. Instant Color Alerts: See moisture ingress via a clear color...
€41.67
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Castel Nut 1/2″ SAE Ø 10 mm (Model 7030/4M10) Castel Nut 1/2″ SAE Ø 10 mm (Model 7030/4M10)

Castel Nut 1/2″ SAE Ø 10 mm (Model 7030/4M10)

Ensure leak-free performance in your refrigeration and HVAC systems with the Castel 1/2″ SAE Nut, featuring a precise Ø 10 mm internal thread. Manufactured from premium brass and finished for corrosion resistance, this nut delivers a secure seal under demanding conditions. Precision Machining: Guarantees a tight, leak-proof...
€2.85
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Castel Nut 1/2″ SAE Ø 12 mm – Model 7030/4M12 Castel Nut 1/2″ SAE Ø 12 mm – Model 7030/4M12

Castel Nut 1/2″ SAE Ø 12 mm (Model 7030/4M12)

Achieve secure, leak-free connections in refrigeration and HVAC systems with the Castel 1/2″ SAE Nut, featuring a precise Ø 12 mm internal thread. Engineered from high-quality brass with a corrosion-resistant finish, this nut provides dependable performance under demanding conditions. Precision Machining: Ensures a tight, leak-proof...
€2.85
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Castel Nut 1/2″ SAE Ø 3/8″ – Model 7020/43 Castel Nut 1/2″ SAE Ø 3/8″ – Model 7020/43

Castel Nut 1/2″ SAE Ø 3/8″ (Model 7020/43)

Maintain leak-free connections in your refrigeration and HVAC systems with the Castel 1/2″ SAE Nut, featuring a precise Ø 3/8″ internal thread. Crafted from high-quality brass with a corrosion-resistant finish, this nut provides durable, reliable performance under demanding conditions. Precision Engineering: Guarantees a secure,...
€2.85
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Castel Nut 3/8″ SAE Ø 10 mm – Model 7030/3M10 Castel Nut 3/8″ SAE Ø 10 mm – Model 7030/3M10

Castel Nut 3/8″ SAE Ø 10 mm (Model 7030/3M10)

Maintain secure, leak-free connections in your refrigeration and HVAC systems with the Castel Nut 3/8″ SAE, featuring a precise Ø 10 mm internal thread. Crafted from high-grade brass and finished for corrosion resistance, this nut provides dependable performance under demanding conditions. Precision Machining: Ensures a tight,...
€2.24
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Castel Nut 3/8″ SAE Ø 3/8″ – Model 7010/33 Castel Nut 3/8″ SAE Ø 3/8″ – Model 7010/33

Castel Nut 3/8″ SAE Ø 3/8″ (Model 7010/33)

Ensure secure, leak-free connections in your refrigeration and HVAC systems with the Castel Nut 3/8″ SAE, featuring a precise Ø 3/8″ internal thread. Crafted from premium brass and finished for corrosion resistance, this nut delivers dependable performance under demanding conditions. Precision Machining: Guarantees a tight, leak-proof seal. Standard 3/8″...
€2.24
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Castel Nut 3/8″ SAE Ø 6 mm – 1/4″ – Model 7020/32 Castel Nut 3/8″ SAE Ø 6 mm – 1/4″ – Model 7020/32

Castel Nut 3/8″ SAE Ø 6 mm – 1/4″ (Model 7020/32)

Simplify mixed-thread installations in your HVAC and refrigeration systems with the Castel reducing nut, featuring a 3/8″ SAE male thread and a Ø 6 mm (1/4″) female thread. Precision-machined from high-grade brass and finished for superior corrosion resistance, this component provides a secure, leak-proof connection under demanding conditions....
€2.24
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Castel Solenoid Valve Ø 3/8″ (Model 1028/3S) – Direct‐Action NC Castel Solenoid Valve Ø 3/8″ (Model 1028/3S) – Direct‐Action NC

Castel Solenoid Valve 1028/3S Ø 3/8″ – Direct‐Action NC

Enhance control over refrigerant flow in your HVAC and refrigeration equipment with the Castel Ø 3/8″ Solenoid Valve, model 1028/3S. Featuring a direct‐action normally‐closed design, this valve ensures rapid shut-off when power is removed, preventing unwanted leaks and safeguarding system integrity. Direct-Action NC: Reliable...
€51.23
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Castel Solenoid Valve 3/8″ SAE – Model 1064/3S Membrane NC Castel Solenoid Valve 3/8″ SAE – Model 1064/3S Membrane NC

Castel Solenoid Valve 3/8″ SAE (Model 1064/3S) – Membrane NC

Enhance control and safety in your refrigeration and HVAC systems with the Castel Solenoid Valve 3/8″ SAE (1064/3S). Its membrane-actuated, normally-closed design delivers rapid shut-off when de-energized, preventing leaks and protecting equipment. Membrane NC Operation: Immediate flow shut-off on power loss. 3/8″ SAE...
€67.79
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Castel Solenoid Valve 1/2″ SAE (Model 1070/4S) – Membrane NC Castel Solenoid Valve 1/2″ SAE (Model 1070/4S) – Membrane NC

Castel Solenoid Valve 1070/4S 1/2″ SAE – Membrane NC

Upgrade your HVAC and refrigeration systems with the Castel Solenoid Valve 1/2″ SAE, model 1070/4S. Designed with a membrane-actuated, normally-closed mechanism, it delivers instant shut-off when power is cut—protecting equipment from leaks and damage. Membrane NC Action: Immediate flow stop on de-energization for maximum safety....
€97.47
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Castel Solenoid Valve Ø 16 mm – Model 1078/5S Membrane NC Castel Solenoid Valve Ø 16 mm – Model 1078/5S Membrane NC

Castel Solenoid Valve Ø 16 mm (Model 1078/5S) – Membrane NC

Improve control and protection in your refrigeration and HVAC systems with the Castel Ø 16 mm Solenoid Valve, model 1078/5S. Its membrane-actuated, normally-closed design delivers instant shut-off when de-energized, preventing leaks and ensuring system integrity. Membrane NC Design: Immediate flow shut-off on power loss for leak...
€130.20
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Castel Straight Union U2-4 1/4″ SAE MM – Model 7110/2 Castel Straight Union U2-4 1/4″ SAE MM – Model 7110/2

Castel Straight Union U2-4 1/4″ SAE MM (Model 7110/2)

Achieve quick, secure connections in your refrigeration and HVAC systems with the Castel Straight Union U2-4 1/4″ SAE MM. Designed with dual male SAE threads, this union couples standard refrigerant lines with ease, providing a direct, reliable pathway for coolant flow. Straight-Through Design: Dual 1/4″ SAE male (MM) threads for straightforward...
€2.24
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Castel Straight Union U2-6 3/8″ SAE MM – Model 7110/3 Castel Straight Union U2-6 3/8″ SAE MM – Model 7110/3

Castel Straight Union U2-6 3/8″ SAE MM (Model 7110/3)

Achieve quick, secure inline connections in your refrigeration and HVAC systems with the Castel Straight Union U2-6 3/8″ SAE MM. Featuring dual male SAE threads, this union couples standard refrigerant lines directly, eliminating adapters and reducing potential leak points. Inline Coupling Design: Dual 3/8″ SAE male (MM) threads for...
€3.05
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Castel 3/8″ SAE Tap Valve for Tight Systems Castel 3/8″ SAE Tap Valve for Tight Systems

Castel 3/8″ SAE Tap Valve for Tight Systems

Simplify charging, vacuuming, and leak testing on compact refrigeration and HVAC lines with the Castel Tap for Tight Systems 3/8″ SAE. Its low-profile brass body, featuring an inlet ODF Ø 10 mm and a 3/8″ SAE outlet with side charging port, allows fast, secure access even in the tightest spaces. Space-Saving Profile: Compact design...
€29.48
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Castel Tee 1/4″ SAE MFM T6-4 Castel Tee 1/4″ SAE MFM T6-4

Castel Tee 1/4″ SAE MFM T6-4

Streamline your refrigeration and HVAC installations with the Castel Tee 1/4″ SAE MFM T6-4. This precision brass MFM fitting offers a solid, leak-proof branch connection for three standard 1/4″ SAE lines—ideal for service and diagnostics. Standard 1/4″ SAE Ports: Three-way MFM T6-4 configuration for versatile line routing....
€4.47
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Castel Valve Cap 1/4″ M Thread Castel Valve Cap 1/4″ M Thread

Castel Valve Cap 1/4″ M Thread

Keep your refrigeration and ice-making systems leak-free with the Castel Valve Cap featuring a 1/4″ male (M) thread. Machined from solid brass and plated for corrosion resistance, this cap provides a secure seal on service ports to prevent moisture ingress and refrigerant loss. Precision 1/4″ M Thread: Ensures tight engagement and...
€1.12
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Castel Cap Valve Ø 6 mm Castel Cap Valve Ø 6 mm

Castel Cap Valve Ø 6 mm

Keep your refrigeration and HVAC systems free of leaks with the Castel Cap Valve Ø 6 mm. Machined from high-quality brass and plated for corrosion resistance, this cap valve provides a secure seal on 6 mm service ports to prevent moisture ingress and refrigerant loss. Precision Ø 6 mm Thread: Guarantees a tight, leak-proof seal....
€41.77
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Castel Coil 380 V HF2 50/60 Hz Castel Coil 380 V HF2 50/60 Hz

Castel Coil 380 V HF2 50/60 Hz (Models 9300/RA8 & 9100/RA8)

Ensure reliable actuation in your HVAC and refrigeration solenoid valves with the Castel 380 V HF2 Coil. Engineered for both 50 Hz and 60 Hz systems, this precision-wound electromagnetic coil provides consistent magnetic force for rapid valve response. Dual-Frequency Operation: Compatible with 50 Hz and 60 Hz mains for versatile...
€23.28
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Castel Filter DI308N/4S with Humidity Indicator Castel Filter DI308N/4S with Humidity Indicator

Castel Filter DI308N/4S with Humidity Indicator

Protect your refrigeration and air-conditioning systems from moisture and contaminants with the Castel Filter DI308N/4S. Its built-in humidity indicator provides immediate visual feedback on system moisture, while the high-capacity desiccant traps water and particles to safeguard equipment longevity. Integrated Humidity Indicator:...
€56.21
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