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Mastercool 53000-004 Bullet Shaft Adapter 53002 Nitrogen Regulator 
Mastercool 53000-004 Bullet Shaft Adapter 53002 Nitrogen Regulator
Mastercool 53000-004 Bullet Shaft Adapter 53002 Nitrogen Regulator
£15.90Sale price £15.90 Regular price -
Mastercool 53000-005 1/4" NPT Female to 1/4" FL Male Adapter 
Mastercool 53000-005 1/4" NPT Female to 1/4" FL Male Adapter
Mastercool 53000-005 1/4" NPT Female to 1/4" FL Male Adapter
£8.60Sale price £8.60 Regular price -
Mastercool 53000-300 High Pressure Replacement Gauge 300 Bar 
Mastercool 53000-300 High Pressure Replacement Gauge 300 Bar
Mastercool 53000-300 High Pressure Replacement Gauge 300 Bar
£11.52Sale price £11.52 Regular price -
Mastercool 53000-70 Low Pressure Replacement Gauge 70 Bar 
Mastercool 53000-70 Low Pressure Replacement Gauge 70 Bar
Mastercool 53000-70 Low Pressure Replacement Gauge 70 Bar
£11.52Sale price £11.52 Regular price -
Mastercool 53003 — Nitrogen Pressure Regulator UK BS3 
Mastercool 53003 — Nitrogen Pressure Regulator UK BS3
Mastercool 53003 — Nitrogen Pressure Regulator UK BS3
£131.17Sale price £131.17 Regular price -
Mastercool 53003-200 Nitrogen Regulator CO2 Systems UK BS3 200 Bar 
Mastercool 53003-200 Nitrogen Regulator CO2 Systems UK BS3 200 Bar
Mastercool 53003-200 Nitrogen Regulator CO2 Systems UK BS3 200 Bar
£222.80Sale price £222.80 Regular price -
Mastercool 53007-100-CO2 CO2 Pressure Regulator W21.8 100 Bar 
Mastercool 53007-100-CO2 CO2 Pressure Regulator W21.8 100 Bar
Mastercool 53007-100-CO2 CO2 Pressure Regulator W21.8 100 Bar
£181.94Sale price £181.94 Regular price -
Mastercool 53030 Nitrogen Pressure Regulator Kit for HVAC Leak Testing 
Mastercool 53030 Nitrogen Pressure Regulator Kit for HVAC Leak Testing
Mastercool 53030 Nitrogen Pressure Regulator Kit for HVAC Leak Testing
£233.32Sale price £233.32 Regular price -
Mastercool 53042-YF R1234yf Nitrogen Leak Testing Adapter 80mm Gauge 
Mastercool 53042-YF R1234yf Nitrogen Leak Testing Adapter 80mm Gauge
Mastercool 53042-YF R1234yf Nitrogen Leak Testing Adapter 80mm Gauge
£95.46Sale price £95.46 Regular price -
Mastercool 53123-A Refillable Dye/Oil Injector for A/C Systems 
Mastercool 53123-A Refillable Dye/Oil Injector for A/C Systems
Mastercool 53123-A Refillable Dye/Oil Injector for A/C Systems
£102.83Sale price £102.83 Regular price -
Mastercool 53123-YF — R1234yf UV Dye/Oil Injector 60ml 
Mastercool 53123-YF — R1234yf UV Dye/Oil Injector 60ml
Mastercool 53123-YF — R1234yf UV Dye/Oil Injector 60ml
£213.47Sale price £213.47 Regular price -
Mastercool 53223-001D UV Dye Cartridge 
Mastercool 53223-001D UV Dye Cartridge
Mastercool 53223-001D UV Dye Cartridge
£33.12Sale price £33.12 Regular price -
Mastercool 53223-YF R1234yf Cartridge Type UV Dye Injector 
Mastercool 53223-YF R1234yf Cartridge Type UV Dye Injector
Mastercool 53223-YF R1234yf Cartridge Type UV Dye Injector
£185.75Sale price £185.75 Regular price -
Mastercool 53376-YF — R1234yf Visual Inspection Sight Glass with Quick Couplers (Economy) 
Mastercool 53376-YF — R1234yf Visual Inspection Sight Glass with Quick Couplers (Economy)
Mastercool 53376-YF — R1234yf Visual Inspection Sight Glass with Quick Couplers (Economy)
£277.99Sale price £277.99 Regular price -
Mastercool 53377-YF — R1234yf Visual Inspection Sight Glass with Manual Couplers 
Mastercool 53377-YF — R1234yf Visual Inspection Sight Glass with Manual Couplers
Mastercool 53377-YF — R1234yf Visual Inspection Sight Glass with Manual Couplers
£331.47Sale price £331.47 Regular price -
Mastercool 53451-110 Rechargeable UV Leak Locator Kit 110V 
Mastercool 53451-110 Rechargeable UV Leak Locator Kit 110V
Mastercool 53451-110 Rechargeable UV Leak Locator Kit 110V
£317.63Sale price £317.63 Regular price -
Mastercool 53451-220 Rechargeable UV Leak Locator Kit 220V 
Mastercool 53451-220 Rechargeable UV Leak Locator Kit 220V
Mastercool 53451-220 Rechargeable UV Leak Locator Kit 220V
£317.63Sale price £317.63 Regular price -
Mastercool 53451-C-220 Rechargeable UV Leak Locator Kit 220V with Case 
Mastercool 53451-C-220 Rechargeable UV Leak Locator Kit 220V with Case
Mastercool 53451-C-220 Rechargeable UV Leak Locator Kit 220V with Case
£299.98Sale price £299.98 Regular price -
Mastercool 53500 UV Mini Light Kit with 2oz Dye Injector 
Mastercool 53500 UV Mini Light Kit with 2oz Dye Injector
Mastercool 53500 UV Mini Light Kit with 2oz Dye Injector
£224.82Sale price £224.82 Regular price -
Mastercool 53500-C UV Dye Injector Kit with Case 
Mastercool 53500-C UV Dye Injector Kit with Case
Mastercool 53500-C UV Dye Injector Kit with Case
£266.38Sale price £266.38 Regular price -
Mastercool 53513-UV Mini UV Flashlight LED with Safety Glasses 
Mastercool 53513-UV Mini UV Flashlight LED with Safety Glasses
Mastercool 53513-UV Mini UV Flashlight LED with Safety Glasses
£56.47Sale price £56.47 Regular price -
Mastercool 53515 — MACH IV Flexible UV Leak Detection Light with Safety Glasses 
Mastercool 53515 — MACH IV Flexible UV Leak Detection Light with Safety Glasses
Mastercool 53515 — MACH IV Flexible UV Leak Detection Light with Safety Glasses
£53.60Sale price £53.60 Regular price -
Mastercool 53518-UV-220 — Rechargeable UV Leak Detection Flashlight with 220V Charger 
Mastercool 53518-UV-220 — Rechargeable UV Leak Detection Flashlight with 220V Charger
Mastercool 53518-UV-220 — Rechargeable UV Leak Detection Flashlight with 220V Charger
£97.97Sale price £97.97 Regular price -
Mastercool 53615-A — Master Leak Shield HVAC Up to 1.5 Ton 
Mastercool 53615-A — Master Leak Shield HVAC Up to 1.5 Ton
Mastercool 53615-A — Master Leak Shield HVAC Up to 1.5 Ton
£53.43Sale price £53.43 Regular price -
Mastercool 53625-6 UV Dye Capsules Pack of 6 
Mastercool 53625-6 UV Dye Capsules Pack of 6
Mastercool 53625-6 UV Dye Capsules Pack of 6
£254.00Sale price £254.00 Regular price -
Mastercool 53660 Master Leak Shield HVAC Sealant for 1.5-6 Ton Systems 
Mastercool 53660 Master Leak Shield HVAC Sealant for 1.5-6 Ton Systems
Mastercool 53660 Master Leak Shield HVAC Sealant for 1.5-6 Ton Systems
£65.99Sale price £65.99 Regular price -
Mastercool 55102-1400 R744 CO₂ Low Pressure Replacement Gauge 70mm Oil Filled 
Mastercool 55102-1400 R744 CO₂ Low Pressure Replacement Gauge 70mm Oil Filled
Mastercool 55102-1400 R744 CO₂ Low Pressure Replacement Gauge 70mm Oil Filled
£70.24Sale price £70.24 Regular price -
Mastercool 55102-2400 R744 CO₂ High Pressure Replacement Gauge 70mm Oil Filled 
Mastercool 55102-2400 R744 CO₂ High Pressure Replacement Gauge 70mm Oil Filled
Mastercool 55102-2400 R744 CO₂ High Pressure Replacement Gauge 70mm Oil Filled
£70.24Sale price £70.24 Regular price -
Mastercool 55102-A R744 CO₂ Aluminium Manifold Body 70mm 1/4" SAE 
Mastercool 55102-A R744 CO₂ Aluminium Manifold Body 70mm 1/4" SAE
Mastercool 55102-A R744 CO₂ Aluminium Manifold Body 70mm 1/4" SAE
£151.50Sale price £151.50 Regular price -
Mastercool 55103-A R744 CO₂ 2-Valve Piston Manifold Body 70mm 1/4" SAE 
Mastercool 55103-A R744 CO₂ 2-Valve Piston Manifold Body 70mm 1/4" SAE
Mastercool 55103-A R744 CO₂ 2-Valve Piston Manifold Body 70mm 1/4" SAE
£247.90Sale price £247.90 Regular price -
Mastercool 55600-A Black Series Infrared Refrigerant Leak Detector 
Mastercool 55600-A Black Series Infrared Refrigerant Leak Detector
Mastercool 55600-A Black Series Infrared Refrigerant Leak Detector
£676.69Sale price £676.69 Regular price -
Mastercool 55661-A R744 CO₂ Aluminium Manifold Gauge Set 2-Way 70mm 3×150cm 
Mastercool 55661-A R744 CO₂ Aluminium Manifold Gauge Set 2-Way 70mm 3×150cm
Mastercool 55661-A R744 CO₂ Aluminium Manifold Gauge Set 2-Way 70mm 3×150cm
£420.06Sale price £420.06 Regular price -
Mastercool 55745-BL CO2 Infrared Leak Detector 
Mastercool 55745-BL CO2 Infrared Leak Detector
Mastercool 55745-BL CO2 Infrared Leak Detector
£783.00Sale price £783.00 Regular price -
Mastercool 55750-BAT Replacement Battery 
Mastercool 55750-BAT Replacement Battery
Mastercool 55750-BAT Replacement Battery
£17.28Sale price £17.28 Regular price -
Mastercool 55800 IntellaSense Heated Diode Refrigerant Leak Detector 
Mastercool 55800 IntellaSense Heated Diode Refrigerant Leak Detector
Mastercool 55800 IntellaSense Heated Diode Refrigerant Leak Detector
£384.95Sale price £384.95 Regular price -
Mastercool 55800-BAT2D D Battery Pack for 55800/55850 
Mastercool 55800-BAT2D D Battery Pack for 55800/55850
Mastercool 55800-BAT2D D Battery Pack for 55800/55850
£3.44Sale price £3.44 Regular price
Frequently asked questions
Yes. We supply professional HVAC engineers, refrigeration contractors, air conditioning installers, and facilities management companies across the UK. Trade accounts are available with preferential pricing and volume discounts.
We stock leading HVAC brands including Aspen Pumps, Sauermann, Blue Diamond, Javac, Mastercool, Armacell, K-Flex, Diversitech, and many more. All products are genuine OEM or manufacturer-approved.
Yes. Orders placed before 1PM on in-stock items are dispatched same day. We offer tracked delivery options across the UK.
Yes. Our trade team is available Monday to Friday 8AM to 4PM on 0161 775 1190 or at sales@airconspares.com. We can advise on product selection, compatibility, and specifications.