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MB Sturgis 100575-12 Type 1 Inverted Flare LP Pigtail Hose 12 Inch UL569 Certified

MB Sturgis 100575-12 Type 1 Inverted Flare LP Pigtail Hose 12 inch dark green RV connector UL569 certified
MB Sturgis Type 1 Inverted Flare Pigtail - 12"
 
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Part Number: 100575-12-MBS
Manufacturer: MB Sturgis

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MB Sturgis UL569 / ANSI Z21-81 Made in the USA MB Sturgis 100575-12 Type 1 Inverted Flare LP Pigtail -- 12 Inch

Keep your LP system flowing freely. This 12-inch Type 1 pigtail hose connects a dual LP cylinder setup to a two-stage regulator, delivering higher flow capacity that reduces the risk of the regulator tripping into bypass mode and cutting off your gas supply. UL569 and ANSI Z21-81 certified, and built to last with a dark green RV-standard Type 1 fitting that includes an internal backcheck to prevent backflow gas leaks.

Higher Flow, Less Bypass Risk for Dual-Tank LP Systems

When two LP cylinders feed a single two-stage regulator, the pigtail hose connecting each cylinder is a critical link in the system. An undersized or restricted hose can starve the regulator of adequate flow, causing it to lock into bypass mode -- which shuts down gas delivery entirely. The MB Sturgis Type 1 pigtail is rated at 200,000 SCFH maximum flow capacity, well above the demands of typical RV dual-cylinder setups, so your system gets the fuel it needs without nuisance shutdowns.

The 1/4-inch ID thermoplastic hose is flexible enough to make easy connections at the cylinder even when bottles are positioned at slight angles or in tight compartments. At 12 inches, it gives you just enough slack to avoid stress on the tank valve fitting while keeping the connection tidy.

Type 1 Dark Green Fitting

RV-standard dark green Type 1 POL-style connection fits standard LP cylinder valves. Internal backcheck prevents backflow gas leak if hose is disconnected under pressure.

200,000 SCFH Flow Capacity

High flow rating keeps the two-stage regulator supplied at demand, reducing the risk of pressure drop or bypass lockout during heavy appliance use.

Wide Temperature Range

Rated -40 F to 140 F (-40 C to 60 C), suitable for year-round RV use including cold-weather camping and hot summer storage conditions.

UL569 / ANSI Z21-81 Certified

Meets the UL569 and ANSI Z21-81 safety standards for LP gas hose assemblies -- required for use in propane systems installed on recreational vehicles.

What Is a Type 1 Pigtail and Why Does It Matter?

A pigtail is the flexible hose that runs between your LP cylinder valve and the inlet of your changeover or two-stage regulator. "Type 1" refers to the green QCC1 (Quick Closing Coupling) style connector that threads onto the cylinder valve -- the standard used on most portable and RV-mounted LP cylinders sold in the United States since the mid-1990s. It replaced the older POL (left-hand thread plug) style and includes an internal safety check that stops gas flow if the hose end is left open.

If you have an older RV with a POL-style regulator inlet, you will need an adapter. Most modern two-stage and automatic changeover regulators accept Type 1 / QCC1 pigtail connections directly.

Backflow Protection Built In
The dark green Type 1 fitting includes an internal backcheck valve. If the hose is disconnected from the regulator end while the cylinder valve is open, gas flow stops at the fitting -- an important safety feature for dual-cylinder installations.

Ideal Applications

  • Dual LP cylinder installations feeding a two-stage regulator (most common travel trailer and fifth wheel setup)
  • Replacement of cracked, brittle, or damaged OEM pigtail hoses
  • Automatic changeover regulator systems requiring Type 1 cylinder connections
  • Service shops restoring or upgrading RV LP systems to current safety standards
LP Gas Only
This hose assembly is rated and certified for LP (liquefied petroleum) gas -- propane -- only. It is not rated for natural gas, compressed air, or any other media.

Installation Notes

Thread the Type 1 fitting hand-tight onto the cylinder valve, then snug with a wrench -- do not overtighten. Connect the opposite (inverted flare) end to your regulator inlet. After installation, check all connections with an LP-rated leak detection solution before lighting any appliances. Inspect the hose assembly at least once per season for cracking, abrasion, or damage, and replace immediately if any deterioration is found.

Maintenance Tip
Thermoplastic LP hose should be replaced every 5-10 years regardless of visible condition, or immediately upon any sign of cracking, softening, or discoloration. Always replace both pigtails in a dual-cylinder system at the same time to maintain balanced flow.

Warranty and Compliance

Backed by MB Sturgis's limited 1-year manufacturer warranty. Manufactured in the USA. Certified to UL569 and ANSI Z21-81, the applicable safety standards for LP gas hose assemblies used in RV applications.

Product Specifications

ManufacturerMB Sturgis
Part Number100575-12
Vendor Part Number06-1403
SKU66-7078
UPC764560527628
Country of OriginMade in the USA
WarrantyLimited 1-Year Manufacturer Warranty

Hose and Fitting Specs

Hose Length12 inches
Hose ID1/4 inch
Hose MaterialThermoplastic
Cylinder ConnectionType 1 / QCC1 dark green RV fitting with internal backcheck
Regulator ConnectionInverted flare
Gas TypeLP (propane) only

Performance Ratings

Max Flow Capacity200,000 SCFH
Temperature Range-40 F to 140 F (-40 C to 60 C)

Safety Certifications

UL ListingUL569
ANSI StandardANSI Z21-81

Physical

Weight0.5 lbs
Important Information
  • For LP (propane) gas use only -- not rated for natural gas, CNG, or any other media.
  • The Type 1 / QCC1 fitting is designed for standard LP cylinder valves used in the USA. Verify your cylinder valves are Type 1 compatible before ordering.
  • Inspect hose assembly before each camping season and replace immediately if cracking, abrasion, kinking, or any damage is found.
  • Always perform a leak check with approved LP leak detection solution after installation or reconnection -- never use an open flame to check for leaks.
  • Do not exceed the rated temperature range of -40 F to 140 F.
  • This listing is for one (1) pigtail hose. Dual-cylinder systems require two pigtails (one per cylinder).
  • Installation should conform to NFPA 58 LP-Gas Code and applicable local codes. When in doubt, consult a certified LP gas technician.


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