Grill Hose
Identify a connector

Start with the picture. Finish with the specification.

The photographs and technical illustrations below can help you put a name to the connector in front of you. Each illustration is based on a named manufacturer part. It is not a measured drawing, so you must still confirm the size and specification in the manual or parts diagram.

Compare connectors Start the guided match
A visual match is not enough.A picture cannot confirm thread size, gas pressure, flow rating, or fuel approval. Never force a connector or improvise an adapter.
Common grill-hose connectors

Compare seven connector types.

Look at the general shape and sealing surface, then check the markings and exact specification in your appliance documentation.

A black Type 1 QCC1 handwheel connecting a grill regulator to a propane cylinderActual photograph
The common Type 1 / QCC1 tank connection on a standard propane grill. The black handwheel tightens over the cylinder valve's outside ACME threads.Photo by Ciaran Roche · Used with permission
Common modern 20 lb propane-cylinder connection

Type 1 / QCC1

Large hand-tightening nut that threads over the outside of the tank valve.

A familiar tank end does not establish the required regulator pressure or appliance-end fitting.
Traceable manufacturer referencesManufacturer photograph of a QCC1 grill regulator assemblyMr. Heater F271161, Type 1 / QCC1 to 3/8 in female flare
Close photograph of a propane cylinder valve opening with internal POL threadsActual photograph
A US POL / CGA 510 cylinder-valve opening. The mating POL fitting screws into this internal left-hand thread.Jan van Bekkum, Wikimedia Commons · CC BY-SA 4.0
Legacy or specialty propane-cylinder connection

POL / CGA 510

Metal fitting that screws into the internal tank-valve thread; often tightened with a wrench.

POL uses a fuel-gas left-hand thread. Do not force or adapt it by appearance.
Traceable manufacturer referencesManufacturer photograph of a hose with a POL handwheelMr. Heater F273701, POL to 1 in-20 hose assembly
Close photograph of the threaded valve on a one-pound disposable propane cylinderActual photograph
The 1 in-20 UNEF disposable-cylinder valve commonly called CGA 600. Portable appliances may present the mating side of this same interface.Jan van Bekkum, Wikimedia Commons · CC BY-SA 4.0
Portable appliance connection normally used with a 1 lb cylinder

1 in–20 / CGA 600

Fine external thread at a compact appliance inlet or disposable-cylinder connection.

A bulk-cylinder adapter is appropriate only when the appliance manufacturer permits one.
Traceable manufacturer referencesManufacturer photograph of a 1 in-20 portable-grill regulatorMr. Heater F273769, 1 in-20 female inlet
Technical illustration of a 3/8 inch female SAE 45-degree flare swivel hose fitting with its internal seat visibleTechnical illustration
A verified 3/8 in SAE 45-degree female flare hose-end example. The nut's straight internal threads draw the fitting together, while the recessed metal seat makes the seal. This is not a dimensional drawing.Original Grill Hose technical illustration · Geometry reference: MB Sturgis SKU 204003
Common appliance end on low-pressure LP regulator assemblies

3/8 in female flare

Swivel hex nut with an internal flare seat; it seals at the flare, not on pipe threads.

Do not add thread-seal tape to a flare seat. Confirm the exact size and mating male flare.
Traceable manufacturer referencesManufacturer reference for the illustrated 3/8 in female flare hose endMB Sturgis 204003, 3/8 in 45-degree female flare seat x 3/8 in barbManufacturer photograph of the complete female-flare hose endMr. Heater F271161, QCC1 regulator with 3/8 in female SAE flareManufacturer photograph of female flare swivel nutsBrassCraft 114FSV-6, 3/8 in OD tube swivel flare union
Technical illustration of a 3/8 inch male SAE 45-degree flare connector with its cone-shaped sealing nose visibleTechnical illustration
A verified 3/8 in SAE 45-degree male flare example. The protruding cone is the sealing face and the straight flare threads sit behind it. The opposite end on this specific part is 3/8 in male NPT. This is not a dimensional drawing.Original Grill Hose technical illustration · Geometry reference: Ram Products X48X6X6
Appliance or hose-end flare connection

3/8 in male flare

Protruding cone-shaped sealing nose with straight threads behind it.

Male and female describe the sealing geometry, not simply whether threads are visible.
Traceable manufacturer referencesManufacturer reference for the illustrated 3/8 in male SAE flare connectorRam Products X48X6X6, 3/8 in tube flare x 3/8 in male pipeManufacturer photograph of a 3/8 in OD flare connectionDormont 91-1010, 3/8 in OD flare on both ends
A brass NPT pipe plug held between caliper jaws to show its tapered threadsActual photograph
A brass NPT plug showing the tapered thread form. This photograph demonstrates shape only and is not a grill-part recommendation.BenFrantzDale at English Wikipedia, via Wikimedia Commons · CC BY-SA 3.0
Fixed piping, valves, adapters, and some appliance connections

NPT pipe thread

Tapered pipe thread that tightens progressively; nominal size cannot be confirmed from a picture.

Flare and NPT connections are not interchangeable. Gas-rated sealing and installation requirements differ.
Technical illustration of a matching 3/8 inch gas quick-disconnect socket and plug shown apartTechnical illustration
A verified 3/8 in gas socket and matching plug shown apart. Plug profiles and shutoff designs vary, so this example cannot prove that another pair matches. This is not a dimensional drawing.Original Grill Hose technical illustration · Geometry references: MB Sturgis SKUs 104406 and 401207
Detachable natural-gas or LP appliance hose connection

Gas quick disconnect

Sliding socket collar that receives a matching plug, often in 3/8 in or 1/2 in nominal sizes.

Size, fuel rating, flow capacity, plug profile, and shutoff design must all match; appearance is not enough.
Traceable manufacturer referencesManufacturer reference for the illustrated 3/8 in gas socketMB Sturgis 104406, 3/8 in gas quick disconnect x 3/8 in FNPTManufacturer reference for the matching illustrated plugMB Sturgis 401207, 3/8 in male plug x 3/8 in FNPTManufacturer photograph of a 3/8 in outdoor gas quick disconnectDormont 20D-KIT12, 3/8 in outdoor gas connector kitManufacturer photograph of a 1/2 in natural-gas quick disconnectMB Sturgis 1/2 in natural-gas quick-disconnect kit
Guided hose check

Check five details before shopping.

This guide covers four common connector combinations. It will not show a product search for an uncertain, adjustable, high-pressure, converted, or nonstandard setup.

Missing a specification?Check the manufacturer information before continuing.
1Which fuel is stated on the appliance label?
Your next step will appear here.Answer only from the appliance label, manual, or manufacturer documentation. Choose “I'm not sure” when a detail is unclear.
When to call a professional

Unsure about pressure, conversion, or gas pipework?

Go back to the brand/model documentation and use a qualified gas-appliance professional where the instructions or local rules require one. A replacement hose is not a fuel-conversion kit.

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