800PSI
Working Pressure

Rated 800 PSI working / 4,000 PSI burst — safe for A2L and HFC high-pressure systems at any service condition

DUALFORCE
Premium Black Hoses

HCPRO Dual Force premium black hoses with color-coded indicator lines — premium braided construction, low-loss fittings, professional service spec

°F+°CDUAL SCALE
Class 1.6 Gauge Accuracy

Class 1.6 calibrated 3-1/8″ (80mm) analog gauges with BOTH °F and °C scales — covers US shop documentation alongside international metric A2L commissioning specs

3A2L+HFC
A2L Transition Ready

Pre-calibrated for R-32, R-410A, R-454B — covers new A2L installs (R-454B) alongside the legacy R-410A install base and R-32 mini-splits in one tool

Why Black Knight

A2L transition ready.

°F + °C dual scale.

Forged brass body.

The HCPRO Black Knight A2L manifold is the professional-grade tool for the A2L refrigerant transition — forged brass body, Class 1.6 calibrated °F + °C dual-scale gauges pre-calibrated for R-32 / R-410A / R-454B, and Dual Force premium black hoses. Engineered for HVAC contractors navigating the A2L transition window — servicing new R-454B residential installs alongside the existing R-410A install base.

Forged brass body, no shortcuts

Heavy-duty forged brass 2-valve manifold body — the professional service standard for charging, evacuation, and diagnostics. No-leak neoprene O-ring system, easy-grip hex handles. Built for the rough handling of daily service truck use — drops, vibration, temperature swings. Smooth piston-type valves give you precision control on charging and recovery without the chatter of cheap stamped-brass bodies.

3-1/8″ Class 1.6 °F + °C dual-scale gauges

Large 3-1/8″ (80mm) analog gauges with Class 1.6 accuracy and both °F and °C dual-scale readings, pre-calibrated for R-32, R-410A, and R-454B. The dual-scale face is a real differentiator on hydrocarbon manifolds — international metric A2L commissioning documentation reads alongside US shop charging specs without conversion tables. Shock-proof rubber covers protect against drops.

Dual Force premium black hoses

Standard 3-hose set — HCPRO Dual Force premium black hoses with color-coded indicator lines (red high, blue low, yellow service / vacuum). The Dual Force jacket is the HCPRO professional hose technology — premium black braided construction reads clean on the truck and on the rooftop, while the color-coded indicator line keeps you oriented at the service port. Rated 800 PSI working / 4,000 PSI burst, low-loss fittings, standard 1/4" SAE connections.

Full Product Description

The HCPRO Black Knight HC2V3LY3BK is a dual-piston A2L manifold gauge set for R-32, R-410A and R-454B — with dual-scale °F/°C gauges and three 3-foot hoses.

Key features

  • Calibrated for A2L refrigerants R-32, R-410A and R-454B
  • Dual-piston valve body for precise high-pressure control
  • Dual-scale °F/°C PSI gauges read temperature and pressure at a glance
  • Includes three 3 ft color-coded charging hoses

The compact A2L set for R-454B and R-32 service in tight equipment.

Technical specifications

Built like a service-truck manifold should be built.

Forged brass body, Class 1.6 calibrated 3-1/8″ gauges with both °F + °C dual scales, HCPRO Dual Force premium black hoses. Rated 800 PSI working / 4,000 PSI burst. SAE J2196 and J2888 compliant. Pre-calibrated for R-32, R-410A, and R-454B — covers the A2L refrigerant transition (new R-454B + legacy R-410A) in one tool. Assembled and tested in the USA.

Model family
A2L Transition Manifold Series2-Valve forged brass body, Dual Force premium black hoses, °F + °C dual-scale gauges spanning A2L + HFC refrigerants
Manifold body
Forged brass, 2-valve piston typeHeavy-duty cast, no-leak neoprene O-ring system, easy-grip hex handles
Gauge size
3-1/8″ (80 mm) dual-scale analogBoth °F + °C / PSI, Class 1.6 accuracy, shock-proof rubber covers
Compatible refrigerants
R-32, R-410A, R-454BA2L transition set — covers new R-454B installs alongside the legacy R-410A install base
Hoses
(3) HCPRO Dual Force premium black, 1/4″ SAEDual Force premium black braided jacket with color-coded indicator lines — red (high), blue (low), yellow (service / vacuum)
Hose tier
Dual Force Premium (varies by SKU)Premium black braided jacket with low-loss fittings — Standard, Anti-Blowback, or Ball Valve per SKU
Working pressure
800 PSISafe for A2L and HFC high-pressure systems at any service condition
Burst pressure
4,000 PSI5× safety margin over working pressure
Valve type
Piston (smooth-action)No chatter, precision control on charging + recovery
Connection
1/4″ SAE (standard service)Fits every common HVAC-R service port
Design
2-valve service manifoldThe professional service standard — light, reliable, purpose-built for charging, evacuation, and diagnostics
Hanging hook
Built-inHang on condenser, package unit, or service ladder
Compliance
SAE J2196, J2888Meets industry standards for refrigerant service equipment
Warranty
1-year limitedCovers manufacturing defects under normal professional use
In the box

Manifold, gauges, Dual Force hoses, and the A2L service insert.

R32 Manifold Gauge – Dual Scale Piston Set for R410A/R454B + 3ft Hoses °F/°C PSI
Forged brass 2-valve manifold bodyPiston-type valves, easy-grip hex handles, neoprene O-ring system, built-in hanging hook
Two 3-1/8″ Class 1.6 °F + °C dual-scale gaugesPre-calibrated for R-32 / R-410A / R-454B — covers the A2L transition, both metric and imperial scales, shock-proof rubber covers
Three HCPRO Dual Force premium black hosesColor-coded indicator lines — red (high), blue (low), yellow (service / vacuum). Low-loss fittings, 800 PSI working / 4,000 PSI burst, 1/4″ SAE connections
Black Knight A2L service insertRefrigerant charging procedure, A2L mildly-flammable handling notes, °F+°C scale reference, SAE compliance documentation
Need a different config?

Find your Black Knight.

Filter by what you service — refrigerant, hose length, hose tier. Switch to Gauge Replacement to find just the calibrated 80mm or 68mm replacements for your existing manifold.

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Customer reviews

What working techs say after putting it on the truck.

12,000+ HVAC pros served
4.9★ Average rating
94% Repeat buyers

Replace this with a real customer quote. Aim for 2–4 sentences — what A2L refrigerant install or service, what equipment, how the dual °F + °C scale and Dual Force hoses performed during the A2L transition.

Marcus T.HVAC TECH · MIAMI, FL
On HCPRO Black Knight A2L Manifold

Replace this with a real customer quote. Aim for 2–4 sentences — what A2L refrigerant install or service, what equipment, how the dual °F + °C scale and Dual Force hoses performed during the A2L transition.

Jorge R.REFRIGERATION CONTRACTOR · ATLANTA, GA
On HCPRO Black Knight A2L Manifold

Replace this with a real customer quote. Aim for 2–4 sentences — what A2L refrigerant install or service, what equipment, how the dual °F + °C scale and Dual Force hoses performed during the A2L transition.

Derrick W.COMMERCIAL HVAC · PHOENIX, AZ
On HCPRO Black Knight A2L Manifold
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Common questions

Answers from the warehouse floor.

Still stuck? Call our techs at 305-720-0044.

Does HCPRO warranty the products?

Yes — every HCPRO Black Knight product ships with a 1-year limited warranty against manufacturing defects under normal professional use. We'll replace the manifold, gauges, or hoses if they fail to meet stated specs. See our full warranty terms.

Which Black Knight manifold should I pick?

Use the tool finder above — within the A2L family, the HC-2V2Y5LP 3 ft is the compact option for residential mini-split installs, the HC-2V2Y3LP 5 ft is the full-length pro option. For HVAC HFC (R-410A pure / R-22 / R-404A / R-134a), commercial refrigeration, hydrocarbon, or R-1234YF mobile A/C, switch families using the filter — we sell dedicated manifolds for each refrigerant lineup.

What's the A2L refrigerant transition?

The HVAC industry is moving from high-GWP HFC refrigerants (R-410A) to lower-GWP A2L refrigerants (R-32 in mini-splits since ~2018, R-454B in new residential systems since 2025). A2L = mildly flammable (lower ignition risk than A3 hydrocarbons but higher than non-flammable HFCs). The transition period means you'll service both R-454B new installs AND R-410A legacy systems for the next 15+ years. This manifold covers both, plus R-32 — one tool for the whole transition window.

What does "Class 1.6" gauge accuracy mean?

Class 1.6 is the European Standard for analog pressure gauge accuracy — readings are within ±1.6% of full scale across the operating range. For a 500 PSI gauge, that's ±8 PSI. This is the professional service tier (Class 2.5 is consumer-grade, Class 1.0 is lab-grade). Class 1.6 gives you the precision needed for proper subcool / superheat charging without the cost of lab-grade gauges.

What refrigerants is this manifold for?

This set ships pre-calibrated for R-32, R-410A, and R-454B — the A2L transition refrigerant set. R-454B is the new A2L residential A/C standard (Carrier, Trane, Lennox systems built from 2025 forward). R-410A is the dominant legacy refrigerant in the existing residential install base. R-32 is the standard A2L mini-split refrigerant globally. For commercial refrigeration (R-134a / R-404A / R-407C / R-507), hydrocarbon (R-290 / R-600), or R-1234YF mobile A/C, see the dedicated Black Knight manifolds.

Can I use these hoses on a different manifold body?

Yes — the HCPRO Dual Force hoses use standard 1/4″ SAE connections and fit any HVAC manifold with the same fitting standard (which is most professional manifolds on the market). You can buy replacement Black Knight hoses separately if you want to upgrade an older manifold body without replacing the gauges.

Can I replace just one gauge if it breaks?

Yes — we sell 3-1/8″ replacement gauges separately in °F/PSI and °C/PSI variants, pre-calibrated for R-410A/R-22/R-404A/R-134a or for R-1234YF, R-32, R-290/R-600. See the replacement gauge collection or use the tool finder above to filter by your refrigerant.

Can I return an unused manifold set?

Yes — free returns within 30 days for unused sets in original packaging with all hoses, gauges, and inserts present. Read our full return policy.

Do you offer fleet pricing for shops?

Yes — trade pricing on this page, plus volume discounts for shops outfitting multiple service trucks. Email hcproproductsusa@gmail.com with your fleet size and we'll send a custom quote within 24 hours.