Built for Aussie tradies, Mastercool Grade 5 standard & high-pressure hoses give you leak-tight connections, tough-as-nails crimps and options in both 1/4" SAE and 5/16" SAE for modern splits. They’re a no worries pick for charging, recovery and maintenance work day in, day out.

Key Features & Trade Benefits

• Grade 5 construction (Standard or Nylon Barrier) — built for durability and high-pressure work; fewer hose failures and call-backs.
• Knurled brass nuts — quick, finger-tight connections even with gloves on; faster change-overs.
• 8-segment crimp ferrules — secure, leak-proof fit for long service life; bloody good in rough site conditions.
• Multiple lengths & sets — common options include 150 cm (60"), 180 cm (72"), and 244 cm (96") in blue/yellow/red sets for tidy hose management.
• Meets EPA, SAE & UL requirements for refrigerant containment — confidence your hoses meet industry standards.
• Choose 1/4" or 5/16" SAE — support legacy systems and many R410A/R32 service ports; verify your unit before purchase.

Why This Product Matters

Real-world: on a steamy Brisbane afternoon, a tech swapped a tired 1/4" set for fresh Mastercool Grade 5 hoses before a recovery job. Knurled nuts bit nicely, the 8-crimp ferrules didn’t twist under load, and the reclaim went smooth — she’ll be right when your hoses don’t weep at the swivels. For more hose options, see our Refrigerant Hoses category.

Pro Tip

Working on R410A/R32 splits? Many use 5/16" SAE service ports. Keep a 5/16" set or an adapter in the van to avoid wasted trips. And always replace perished gaskets when you see micro-bubbles on a leak test — cheap insurance for a ripper seal.

Compatibility & System Info

• Fittings: 1/4" SAE & 5/16" SAE options (blue/yellow/red sets).
• Typical applications: charging, recovery and service on domestic & light commercial systems.
• Pressure guidance (model-dependent): Standard hoses approx. 750 psi (≈51.7 bar) WP / 3000 psi (≈206 bar) burst; Nylon barrier approx. 56 bar WP / 280 bar burst. Check the variant page for exact ratings.
• Lengths: 150 cm, 180 cm, 244 cm sets available (model-specific).

Local note: From Sydney rooftops with crosswinds to humid Brisbane plant rooms, these hoses are built for daily tradie use — less mucking around, more jobs done.

What’s Included

• Set of 3 hoses — blue / yellow / red (length & fitting size per selection)
• Pre-installed gaskets
• Manufacturer documentation

Refer to each variant (e.g., 150 cm 1/4" 40360; 180 cm 1/4" 40372; 244 cm 1/4" 40396; 150 cm 5/16" 49360-J) for exact inclusions.

Specifications

*Ratings vary by model; always check the specific variant page before purchase.

Warranty & Returns

Covered by HVAC Shop’s standard warranty and returns when installed and used by qualified personnel. Handle refrigerants per Australian best practice and site WHS requirements.

FAQs

Do I need 5/16" hoses for R410A/R32?
Many modern splits use 5/16" service ports; check your unit. If unsure, start here: R32 compatibility guide.

What pressure ratings should I expect?
Typical standard hoses are around 750 psi WP / 3000 psi burst; nylon barrier options list approx. 56 bar WP / 280 bar burst. Confirm on the variant page.

Which length is best — 150 cm, 180 cm or 244 cm?
150 cm for tight spaces, 180 cm as the everyday all-rounder, 244 cm for larger racks or when you need extra reach from the manifold.

Will these hoses fit my existing manifold?
Yes — choose 1/4" or 5/16" to match your manifold and service ports. For a matching manifold set, see below.

Related Products

• Mastercool Manifold Gauge Sets — a helpful pairing to keep pressure readings accurate while your new hoses do the heavy lifting.
• Testo 550i Digital Manifold — handy if you prefer app logging with your hose set.
• AccuTools TruBlu Evacuation Kit — speeds up vacuum pulls and complements robust service hoses.

See how fittings work

The video below shows refrigerant hose end fittings in action — a quick refresher on how connections should look and seal in the field.