80MM Manifold Gauge Sets – 2-Way & 4-Way for R410A, R32, R22, R134A, R404A

Built for Aussie tradies who want reliable readings without fuss.

Mastercool’s 80 mm manifold gauge sets deliver tight sealing, smooth valve control and Class 1 accuracy — ideal for everyday service work on R410A/R32 and legacy refrigerants. Pick 2-way or 4-way, with or without hoses, to suit your workflow.

Key features & trade benefits

• Free-floating piston valves — low wear, smooth operation for daily use; helps keep controls precise under pressure.
• Double O-ring sealing — improved leak resistance so you’re not chasing micro-leaks later. Fewer call-backs.
• Class 1.0 accuracy on large 80 mm dials — easy-read scales for fast, confident diagnostics.
• R410A/R32 models with 5/16″ FL options — fit minisplit ports without fiddly adapters.
• High-flow 3/8″ bore (select 4-way variants) — speeds evacuation/charging on bigger jobs.
• Hose-included bundles — grab-and-go sets with 3 × 150 cm hoses to save setup time.

Why this product matters

Real-world: on a hot Perth roof, you need numbers you can trust — quickly. Large 80 mm dials and Class 1 accuracy help you nail readings at a glance. Free-floating valves and double O-rings keep the set sealing sweet so you can charge, test and go. Fair dinkum gear that earns its keep shift after shift. See all options on our Mastercool manifold gauge sets page.

Pro tip

Working R410A/R32 minisplits? Choose the 5/16″ FL variants to match port size, or add a quality adapter to avoid chewing gaskets — she’ll be right when everything mates properly.

Compatibility & system info

• Refrigerants: model-dependent support across R410A, R32, R407C, R22, R134a, R404A.
• Fittings: Standard 1/4″ FL, 5/16″ FL options for high-pressure minisplits; select variants provide 3/8″ bore for higher flow.
• Accuracy: Class 1 analogue gauges (80 mm face on most variants).

Local note: From humid Brisbane plant rooms to windy Sydney rooftops, big-face Class 1 gauges make life easier when the weather’s trying to have a go.

Model comparison (quick view)

Variants, fittings and hose options verified on the HVAC Shop product page.

Short descriptions by variant

• 2-Way R410A-R32-R407C-R22: Everyday service set for mixed refrigerants.
• 2-Way 5/16″ FL: Minisplit-ready without adapters.
• 4-Way R410A (3/8″ bore): High-flow for quicker evacuations and charges.
• 4-Way R410A-R32-R407C: Multi-gas flexibility with extra ports.
• 4-Way R134a-R404A: Handy for auto and commercial refrigeration.
• 2-Way R22-R134a-R404A: Reliable choice for legacy systems.
• 2-/4-Way with hoses: Ready-to-work sets with 3 × 150 cm hoses.

What’s included

Depends on the variant — select “with hoses” if you want 3 × 150 cm lines bundled. Otherwise, manifold only.

Specifications

Specs derived from Mastercool listings and spare-gauge pages (Class 1).

Warranty & returns

Covered by HVAC Shop’s standard warranty and returns. Built tough — and if anything turns up crook out of the box, we’ll sort it quick smart.

FAQs

Do these sets include hoses?
Some variants do (3 × 150 cm). Others are manifold-only — check the option you select.

Are the gauges really Class 1?
Yes — Mastercool lists 80 mm replacement gauges as Class 1 accuracy, and the range uses the same face spec.

What if I need 5/16″ for minisplits?
Choose the 5/16″ FL variants to match R410A/R32 ports, or pair a 1/4″ set with a quality adapter.

Related products

• Mastercool 150 cm Hose Set (1/4″) — helpful when you want a ready-to-run kit with solid crimps.
• Mastercool 90430 Swivel Ball Valve — add hose-end isolation for tidy connect/disconnects.
• Testo 550i Digital Manifold — a smart option if you’re going app-based with logs and auto calcs.