Connects a propane tank to an automatic changeover regulator with female 1/4" pipe thread inlets. Stainless steel overbraid resists rodent damage and UV exposure. High-capacity RV Type 1 connector with reverse-flow back check and 260°F thermal shut-off. 20" length. Rated 400,000 BTU/hr.
The MB Sturgis 100868-20-MBS is a stainless steel overbraided propane pigtail purpose-built to connect propane cylinders to an automatic changeover regulator with female 1/4" pipe thread inlets — the type of regulator commonly used in dual-tank RV setups that automatically switch from an empty tank to a full one without interrupting gas flow.
The stainless steel overbraid wraps the hose to protect it from two common threats: rodents, which are drawn to the warm, sheltered spaces around propane tanks and have been known to chew through unprotected hose material, and UV exposure, which degrades standard hose material over time. The overbraid combined with the thermo-rubber hose construction reduces stiffening and extends the hose's service life. The Type 1 (ACME) connector on this pigtail is high-capacity, supporting up to 400,000 BTU/hr before going into bypass, and includes both a 260°F thermal shut-off device and a reverse-flow back check valve — two layers of built-in safety protection. At 20", this length offers a bit more reach than the 15" option, useful when your tank-to-regulator distance requires extra slack for clean routing. The opposite end terminates in a 1/4" male pipe thread fitting that screws directly into the regulator's inlet.
Protects against rodent damage and UV exposure while reducing hose stiffening for a longer service life
Built-in thermal shut-off device adds a layer of fire safety protection not found on standard pigtails
Prevents backflow leakage in the Type 1 connector — supports safe dual-tank automatic changeover operation
High-capacity Type 1 connector designed for the flow demands of dual-cylinder automatic changeover systems
Before ordering, confirm the following: 1. Regulator type: This pigtail is designed to connect two propane cylinders to an automatic changeover regulator that has female 1/4" pipe thread inlets. Confirm your regulator matches this inlet type before ordering. 2. Tank-side connector: The cylinder end uses the RV Type 1 (ACME) connector, standard on most current propane tanks. If your tank uses the older POL connection, a different pigtail or adapter is required. 3. Two pigtails required: Automatic changeover systems use two propane cylinders, each requiring its own pigtail connection to the regulator. Order two of this part — one for each tank. 4. Length: This pigtail is 20 inches long — note this is inches, not feet. Confirm 20" provides adequate reach for your tank-to-regulator distance, or consider the shorter 15" option if your tanks are mounted closer to the regulator.
Installation Steps: 1. Shut Off Gas Supply: Close the tank valve completely before disconnecting any existing pigtail or making new connections 2. Connect the Type 1 End: Thread the RV Type 1 (ACME) connector onto the propane tank valve and hand-tighten 3. Connect the MPT End: Thread the 1/4" male pipe thread fitting into the automatic changeover regulator's female pipe thread inlet 4. Tighten Securely: Tighten both connections to a secure, leak-free fit without overtightening 5. Repeat for Second Tank: Install a second 100868-20-MBS pigtail connecting the second propane cylinder to the regulator's other inlet 6. Leak Test: Slowly open both tank valves and perform a soap-and-water leak test on every connection before use Gas line work should be performed or verified by a qualified technician. Always leak-test connections before placing the system into service.
In The Package: • (1) 100868-20-MBS Stainless Overbraid Propane Pigtail — 20" Length • RV Type 1 (ACME) Connector with Thermal Shut-Off and Back Check • 1/4" Male Pipe Thread Fitting NOT Included: • Second pigtail (required for dual-tank automatic changeover setups — purchase separately) • Automatic changeover regulator • Thread sealant
MB Sturgis Technical Support: Phone: (314) 291-6665 Email: [email protected] MB Sturgis Inc. has supplied OEMs, distributors, gas installers, and end users with safe LP and natural gas connection products since 1959.