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Description
Mastercool 90° Hex Style Pressure Control Hoses are a smart upgrade when copper capillary keeps cracking from vibration. Built with 1/4″ SAE hex fittings in a Straight × 90° layout, they’re rated to 600 psi (42 bar) and 200°F (93°C) for dependable pressure control on Aussie job sites. Fair dinkum durable.
Key features & trade benefits
- Capillary replacement — purpose-built to replace copper capillary runs and avoid vibration-related work hardening failures; fewer call-backs.
- Straight × 90° fittings (1/4″ SAE) — neat routing off pressure controls and receivers in tight panels for cleaner installs.
- Rated to 600 psi / 200°F — confidence for typical HVAC/R pressures and ambient heat on rooftops.
- Wide temp range −20 to 200°F (−29 to 93°C) — dependable across Aussie climates.
- Multiple lengths (12″–48″) — cut downtime by matching the reach without loops or kinks.
- Hex style ends — easy spanner purchase for firm, leak-free tightening.
Why this product matters on real jobs
Ever had a cap tube crack on a vibrating Sydney roof unit? Swap it for a Straight × 90° pressure control hose and route around the guard neatly. No fiddly coils, no stress risers. System back online and the client’s happy — she’ll be right.
Need more hose options? Browse our Refrigerant Hoses to round out your kit.
Pro tip
When replacing capillary with a hose, support the run and avoid tight reverse bends right at the 90° fitting. A small P-clip keeps vibration out of the joint — no worries.
Compatibility & system info
- Thread: 1/4″ SAE (hex style)
- Configuration: Straight × 90°
- Working pressure: up to 600 psi (42 bar)
- Operating temp: −20 to 200°F (−29 to 93°C)
- Use: Pressure control hookups; capillary replacement where vibration is an issue.
Built for Aussie conditions
From humid Brisbane plant rooms to summer Sydney rooftops, the temp range and compact 90° fitting help keep installs tidy and robust in the heat.
What’s included
- 1 × Mastercool 90° Hex Style Pressure Control Hose (selected length)
Specifications
| Lengths (part numbers) | 12″ 47124-ST • 18″ 47184-ST • 24″ 47244-ST • 36″ 47364-ST • 48″ 47484-ST (Straight × 90°) |
| Thread / style | 1/4″ SAE, hex style ends (Straight × 90°) |
| Working pressure | Up to 600 psi (42 bar) |
| Operating temperature | −20 to 200°F (−29 to 93°C) |
Warranty & returns
Covered by our standard returns policy. See Shipping & Returns. Installations must comply with Australian standards and site safety rules.
FAQs
Do these hoses really replace copper capillary?
Yes — they’re designed for that task and specifically resist vibration-induced work hardening. Follow good support/strain-relief practice.
Which length should I choose?
Pick the shortest length that avoids tight reverse bends. Options are 12″, 18″, 24″, 36″ and 48″ (see part numbers above).
Will 1/4″ SAE fit standard service hardware?
Yes — they use common 1/4″ SAE threads; adapters are available if you need to step to 5/16″ or 3/8″. See the related accessories below.
Related products
- Mastercool 90410 Flex Adapter — handy when you need to convert 1/4″ hose to 5/16″ on minisplits.
- C&D CD2038 3/8″M × 1/4″F Swivel Adapter — useful when stepping hoses on manifold or pump ports.
- Mastercool 1/4″ Control Valve — add positive shut-off at the hose end to reduce losses and mess.
Any question?
If we still haven't answered your question, you can contact us below and we will get back to you as soon as possible.
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