A properly matched pigtail is the first line of defense against nuisance bypass shutdowns in a dual-cylinder LP system. The MB Sturgis 100575-30-MBS delivers higher flow capacity than typical undersized hoses, keeping your two-stage regulator fed and your appliances running without interruption.
When a pigtail cannot pass enough gas volume to satisfy your two-stage regulator under demand, the regulator interprets the pressure drop as an over-pressure event and trips into bypass -- cutting off the gas supply entirely. The 100575-30-MBS is built specifically to prevent that scenario. Its 1/4" ID thermoplastic hose and Type 1 brass end fittings are rated to 200,000 SCFH maximum flow, far exceeding the demand of typical RV appliance loads.
The dark green Type 1 POL-style connection meets the current ANSI/NFPA standard for RV LP cylinder connections and includes an internal backcheck valve that prevents gas from flowing backward out of the hose when the cylinder is disconnected -- a safety feature required by UL569.
200,000 SCFH max flow capacity reduces regulator bypass events caused by pressure starvation in high-demand dual-cylinder setups.
Dark green RV Type 1 connection includes a built-in backcheck that prevents reverse gas flow when the cylinder is removed or swapped.
Rated from -40F to 140F (-40C to 60C), suitable for year-round use in cold-weather camping and hot desert environments alike.
UL569 and ANSI Z21-81 listed, meeting the standards required for LP pigtail hoses used in RV and portable cylinder applications.
Type 1 (also designated OPD -- Overfill Protection Device) is the current standard valve outlet for portable LP cylinders used in RVs and recreational applications. It replaced the older POL (left-hand thread) fitting on cylinders manufactured after 1998. The Type 1 connection uses a right-hand thread with an acme-style coupling and requires no wrench -- hand-tight engagement is sufficient for a leak-free seal. MB Sturgis colors their Type 1 fittings dark green to distinguish them from the older brass POL style at a glance.
The 30-inch length provides enough slack to connect both cylinders on a standard dual-cylinder rack without stressing the fittings when cylinders are swapped. The inverted flare end at the regulator side creates a metal-to-metal seal without requiring a rubber seat, which can degrade over time. This combination of length and fitting style is what most two-stage automatic changeover regulator manufacturers recommend for reliable dual-tank installations.
In a typical RV dual-cylinder LP setup, two pigtails feed an automatic changeover regulator (sold separately). When one cylinder runs empty, the regulator automatically switches to the reserve tank and triggers a visual indicator. Using matched, high-flow pigtails on both sides of the regulator ensures the changeover happens smoothly without a pressure drop large enough to trip the bypass safety. This hose is designed for exactly that role.
The regulator-side fitting on this pigtail is an inverted flare end -- the standard connection found on most two-stage and single-stage RV LP regulators. If your existing regulator uses a different inlet (such as a 1/4" NPT or POL inlet), a brass adapter fitting will be required. Verify your regulator inlet type before ordering.
The 1/4" ID hose body is thermoplastic rather than rubber, giving it better resistance to ozone cracking, UV exposure, and fuel absorption over time. Unlike older rubber LP hoses that can soften and swell internally after years of propane exposure, thermoplastic hose maintains its ID and flow characteristics throughout its service life. MB Sturgis manufactures this hose assembly in the USA and backs it with a limited one-year manufacturer warranty.
This pigtail is rated for LP (propane/butane) gas only. Do not use with natural gas, compressed air, or any other medium. The internal backcheck valve and hose materials are formulated specifically for LP service.