HCQFH38 DUAL FORCE 3/8" 6' SAE High Volume Dual Force® Evacuation and Charging Hose R410 Rated image 2
Gold hose fitting with text highlighting HCPRO's benefits on a dark background
Vacuum tool infographic highlighting features and benefits for service workflow.
HCPRO Dual Force QuickFlow kit for HVAC professionals with detailed features on a dark background.
HCQFH38 DUAL FORCE 3/8" 6' SAE High Volume Dual Force® Evacuation and Charging Hose R410 Rated image 4
HCQFH38 DUAL FORCE 3/8" 6' SAE High Volume Dual Force® Evacuation and Charging Hose R410 Rated image 1
Dual Force 3/8" x 6' SAE HVAC Evacuation & Charging Hose R410A Rated
Dual Force 3/8" x 6' SAE HVAC Evacuation & Charging Hose R410A Rated
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Dual Force
Dual Force Hose · 3/8″ High-Flow

HCQFH383/8″ SAE Dual Force Evacuation Hose · 6 ft · R-410A High-Flow

SKU · 22-0063MPN · HCQFH38
3/8″ High-FlowAssembled & Tested in USADual Force800 PSI4000 PSI BurstR-410A3/8″ SAE6 ftEvacuation + Charging
$68.52
In stock· ships same business day from Miami
Direct from the manufacturer — Miami HQ, full warranty & tech support included.
In stock, ready to ship
Assembled
Tested in Miami
Standard
OEM Spec
Ships
1–2 Days
  • Field-tested by working HVAC technicians
  • Free returns within 30 days
  • Direct manufacturer support — Miami HQ
  • ORDER IN THE NEXT — AND IT SHIPS TODAY FROM MIAMI
800PSI
Working Pressure

Rated 800 PSI working / 4,000 PSI burst — safe for R-410A evacuation and charging service at any operating condition

3/8SAE
High-Flow Evacuation

3/8″ SAE high-flow construction — moves more refrigerant and pulls deeper vacuum than 1/4″ hoses. The pro spec for R-410A evacuation and charging on residential and commercial HFC systems.

4000PSI BURST
5× Safety Margin

4,000 PSI burst rating vs 800 PSI working = 5× safety margin — pro safety spec for R-410A high-pressure evacuation and charging

USAASSEMBLED
Assembled & Tested in USA

Every Dual Force 3/8″ hose is assembled and tested in Miami to OEM-spec quality control — same hose technology trusted by the full Black Knight ecosystem

Why Black Knight

3/8″ high-flow.

800 PSI working.

Premium black braided.

The HCPRO Black Knight 3/8″ Dual Force evacuation hose is the high-flow companion to our 1/4″ charging hose lineup — premium black braided construction, 6 ft length, standard 3/8″ SAE connections. Built for R-410A evacuation work where the larger diameter pulls deeper vacuum and moves more refrigerant per minute than 1/4″ hoses.

Dual Force premium braided construction

Every Black Knight evacuation hose is built on the HCPRO Dual Force jacket — premium black braided construction that reads professional on the truck and at the rooftop. The black exterior resists UV degradation and shop-bench abuse. Same hose technology that ships in our 1/4″ Black Knight charging hose lineup, scaled up to 3/8″ diameter for high-flow evacuation work.

800 PSI working / 4,000 PSI burst

Rated 800 PSI working / 4,000 PSI burst — that's a 5× safety margin over working pressure. Safe for R-410A high-pressure HFC service, A2L systems (R-32 / R-454B), and modern Mobile A/C refrigerants (R-1234YF). Same pressure spec as the hoses shipping in our full Black Knight manifold sets.

3/8″ high-flow vacuum + charge

The 3/8″ SAE diameter is the pro spec for evacuation and charging on R-410A residential and commercial systems. Larger cross-section means faster pump-down times (deeper vacuum, faster) and higher charging flow rates compared to 1/4″ hoses. Pair with a 3/8″-port vacuum pump like the HCEC-6S 6 CFM or HCBK12DC 12 CFM for the matched-spec evacuation kit.

Full Product Description

The Dual Force HCQFH38 is a high-flow 3/8" SAE evacuation and charging hose, 6 feet long — moving far more CFM than a 1/4" hose for faster deep-vacuum pull-down.

Key features

  • 3/8" high-conductance bore evacuates a system dramatically faster than a 1/4" hose
  • 6 ft length with R-410A-rated, high-pressure construction
  • SAE fittings pair with a 3/8" vacuum pump port and Quick-Y vacuum tee
  • The single most effective upgrade to cut evacuation time

Run a 3/8" hose with a vacuum-rated core tool and reach 500 microns in a fraction of the time.

Technical specifications

3/8″ high-flow specs for serious evacuation and charging work.

HCPRO Dual Force 3/8″ premium black braided evacuation hose — 800 PSI working / 4,000 PSI burst, high-flow construction. 6 ft length, 3/8″ SAE connections at both ends. Built for R-410A evacuation and charging where 1/4″ hoses bottleneck the vacuum pump or charging flow. Assembled and tested in Miami, FL.

Model family
Dual Force 3/8″ Evacuation Hose — Black Knight SeriesSingle 6 ft high-flow evacuation + charging hose, premium black braided construction, R-410A rated
Construction
Dual Force premium black braided jacketUV-resistant, shop-bench-resistant, professional service grade — same construction as 1/4″ Black Knight hoses, scaled to 3/8″ for high-flow
Hose length
6 ft (72″)Pro working length for rooftop evacuation, condenser-pad service, and tight commercial equipment bays
Compatible refrigerants
R-410A and full HVAC HFC service rangeR-410A rated — also handles R-22, R-404A, R-134a, R-32, R-454B at high-flow evacuation and charging pressures
Hose diameter
3/8″ inner diameter (high-flow)Larger cross-section pulls deeper vacuum and moves more refrigerant than 1/4″ — pro evacuation + charging spec
Working pressure
800 PSISafe for R-410A and modern A2L high-pressure HFC service at any operating condition
Burst pressure
4,000 PSI5× safety margin over working pressure — pro safety spec
Fitting tier
Premium Standard 3/8″ SAEStandard 3/8″ SAE connections at both ends — fits 3/8″-port vacuum pumps and any 3/8″ SAE service connection
Connection
3/8″ SAE (both ends)Standard pro evacuation fitting — fits 3/8″-port vacuum pumps (HCEC-6S, HCBK12DC, and others) and 3/8″ SAE manifold ports
Application
High-flow evacuation + chargingR-410A and HFC system evacuation, deep vacuum pull-down, high-volume refrigerant charging — pairs with 3/8″-port vacuum pumps
Hose count
Single hose (3/8″ SAE, 6 ft)Sold as a single hose for use in evacuation and charging applications — pair with our 1/4″ charging hose sets for full service kit coverage
Assembled in
Miami, FL — USAAssembled and pressure-tested to OEM-spec quality control at our Miami facility — same as the 1/4″ Black Knight charging hose lineup
Compliance
SAE J2196, J2888Meets industry standards for refrigerant service equipment
Warranty
1-year limitedCovers manufacturing defects under normal professional use
In the box

One 3/8″ Dual Force hose, high-flow ready for evacuation and charging.

Gold hose fitting with text highlighting HCPRO's benefits on a dark background
One HCPRO Dual Force 3/8″ premium black hose6 ft length, premium black braided construction, 800 PSI working / 4,000 PSI burst — built for R-410A evacuation and charging
3/8″ SAE connections at both endsStandard professional evacuation fitting — fits 3/8″-port vacuum pumps and any 3/8″ SAE manifold service port
Dual Force premium black braided jacketSame hose technology as our 1/4″ Black Knight charging hose lineup — UV-resistant, professional service grade
Black Knight 3/8″ Evacuation service insertPressure rating reference, 3/8″ vs 1/4″ application guide, vacuum pump compatibility, 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 — what vacuum pump paired with, what R-410A system serviced, how the 3/8″ high-flow construction sped up evacuation vs 1/4″ hoses.

Marcus T.HVAC TECH · MIAMI, FL
On HCPRO Black Knight Dual Force 3/8″ Evacuation Hose

Replace this with a real customer quote — what vacuum pump paired with, what R-410A system serviced, how the 3/8″ high-flow construction sped up evacuation vs 1/4″ hoses.

Jorge R.REFRIGERATION CONTRACTOR · ATLANTA, GA
On HCPRO Black Knight Dual Force 3/8″ Evacuation Hose

Replace this with a real customer quote — what vacuum pump paired with, what R-410A system serviced, how the 3/8″ high-flow construction sped up evacuation vs 1/4″ hoses.

Derrick W.COMMERCIAL HVAC · PHOENIX, AZ
On HCPRO Black Knight Dual Force 3/8″ Evacuation Hose
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Tools that pair with the HCQFH38.

HCEC-6S ECO SERIES 6CFM Single-Stage 1/2HP Vacuum pump, Single Voltage 115V/60HZ image 8
22-0009

HCEC-6S 6 CFM HVAC Vacuum Pump — Single Stage, 1/2 HP, 115V

$164.90
HCEVCK538 Vacuum Rated Valve Core Removal Tool – 5/16” x 3/8” x 1/4”
22-0062

HCEVCK538 Vacuum Rated Valve Core Removal Tool – 5/16” x 3/8” x 1/4”

$49.48
HC-2V2Y5LP Brass 2-Way Manifold Gauge Set R32, R454b, R410a °F/°C PSI, 3-1/8" Gauges, (5) 60” Standard ¼” Premium Black Hoses Rated 4000 PSI Burst, 800 PSI image 2
22-0039

HCPRO 1/4" x 5' HVAC Charging Hose Set | Standard 3-Hose Kit

$49.95
HC-2V2F5AB Brass 2-Way Manifold Gauge Set R410a, R22, R404a, R134a °F PSI, 3-1/8" Gauges, (5) 60” Anti-Blowback ¼” Premium Black Hoses Rated 4000 PSI Burst, 800 PSI image 1
22-0107

HVAC Manifold Gauge Set R410a/R22/R404a/R134a – 3‑1/8″ Gauges & 5 ft Anti‑Blowback Hoses

$119.85
HCRHG14 1/4” Gaskets for Hoses and Adapters image 3
22-0008

1/4” Neoprene HVAC Hose Gaskets – Leak-Proof Sealing Rings

$16.01
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?

If you're doing serious R-410A evacuation work, you need this 3/8″ hose paired with a 3/8″-port vacuum pump (HCEC-6S 6 CFM or HCBK12DC 12 CFM). For charging gauge readings (high-side and low-side), use our 1/4″ Black Knight charging hose sets in the appropriate tier (Premium Standard / Anti-Blowback / Ball Valve). The two are complementary in a full evacuation + charging service kit.

Why 3/8″ instead of 1/4″?

The 3/8″ inner diameter moves significantly more air and refrigerant per minute than a 1/4″ hose. For vacuum evacuation, that means faster pump-down times and the ability to pull deeper vacuum (below 500 microns). For refrigerant charging, that means higher charging flow rates. Pro shops use 3/8″ hoses on the evacuation side of the manifold (yellow service port) and 1/4″ hoses for the high/low gauge readings. This hose is the dedicated 3/8″ for the evacuation + charging side.

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 3/8″ hose rated for?

R-410A rated and safe for the full HFC + A2L service range — R-22, R-404A, R-134a, R-32, R-454B, R-407C, R-507 all handled at 800 PSI working / 4,000 PSI burst. Use dedicated hydrocarbon-spec hoses for R-290 / R-600 service (cross-contamination risk on flammable refrigerants).

Will this hose work with my vacuum pump?

If your vacuum pump has a standard 3/8″ SAE inlet port (which is the pro evacuation pump spec — HCEC-6S, HCBK12DC, and most competitor 6+ CFM pumps), yes. Some smaller 1.5–3 CFM pumps have 1/4″ inlets, in which case use a 3/8″-to-1/4″ adapter (sold separately) or pair with our 1/4″ Black Knight charging hose set instead.

When should I replace evacuation hoses?

Signs your 3/8″ evacuation hose needs replacement: (1) visible cracks, kinks, or bulges in the jacket, (2) can't pull below 500 microns even with a known-good vacuum pump, (3) oil seepage at the fittings, (4) hose stiffness loss (jacket degrades, becomes spongy under vacuum), (5) fittings won't hold a positive seal during pressure decay test. Annual replacement is standard practice on high-volume evacuation shops.

Can I return an unused 3/8″ hose?

Yes — free returns within 30 days for unused 3/8″ hoses in original packaging. Once the hose has been pressurized with refrigerant, it's considered used and not eligible for return. Read our full return policy.

Do you offer bulk pricing on 3/8″ evacuation hoses?

Yes — trade pricing on this page, plus volume discounts for shops keeping 3/8″ hoses as spare inventory across multiple service trucks. Email hcproproductsusa@gmail.com with your quantity and we'll send a custom quote within 24 hours.