Connects a propane tank to your RV's regulator. Stainless steel overbraid protects against rodent damage and abrasion. RV Type 1 (ACME) connector with built-in back check valve — suitable for dual-tank setups. 1/4" male inverted flare regulator-side fitting. 15" length. Rated up to 450,000 BTU/hr.
A propane pigtail is the connection between your RV's propane tank and its regulator — and the MB Sturgis 100833-15-MBS takes that connection a step further by wrapping the hose in a stainless steel overbraid. This protective layer shields the hose from abrasion and, importantly, from rodent damage — small animals are drawn to the warm, sheltered spaces around propane tanks and have been known to chew through unprotected hose material, creating a serious safety hazard. The stainless overbraid puts a durable barrier between teeth and hose.
Like MB Sturgis's standard 100575 pigtail series, the 100833-15-MBS is built around the RV Type 1 (ACME) connector — the modern standard fitting found on most current propane cylinders — and includes a built-in back check valve that prevents hazardous backflow leakage, making it suitable for dual-tank setups where two pigtails feed a shared two-stage regulator. The Type 1 connector provides a higher rate of flow than older POL-style connections, reducing the chance of the system going into bypass mode during normal use. The opposite end terminates in a 1/4" male inverted flare fitting designed to thread into the female inverted flare inlet found on most RV propane regulators. At 15", this length provides a bit more reach than the 12" option while still suiting tanks and regulators in relatively close proximity, and giving installers extra slack to route the hose cleanly without tension.
Protects the hose from rodent damage and abrasion — a durable upgrade over standard unprotected pigtail hose
Prevents hazardous backflow leakage — makes this pigtail suitable for dual-tank propane systems with a shared regulator
Modern standard tank connector provides higher flow rate than older POL fittings, reducing the chance of bypass shutdown
Internal ball-and-spring mechanism shuts off flow if demand exceeds rated capacity, protecting against unsafe overflow conditions
Before ordering, confirm the following: 1. Tank-side connector — Type 1 (ACME) vs. POL: This pigtail uses the modern RV Type 1 (ACME) connector, standard on most current propane tanks (often identifiable by a green cap). If your tank uses the older POL left-hand-thread connection, you will need a different pigtail or an adapter — this part will not thread onto a POL valve. 2. Regulator-side fitting: The regulator end of this pigtail is a 1/4" male inverted flare. Confirm your regulator has a matching female inverted flare inlet, often via a brass NPT-to-inverted-flare adapter pre-installed on the regulator. If your regulator instead has a 1/4" female NPT inlet directly, see the MB Sturgis 100473 series (rubber, no overbraid) instead. 3. Length: This pigtail is 15" long. Shorter (12") and longer (24", 36") options are available in the stainless overbraid family depending on your tank-to-regulator distance. 4. Dual-tank setups: If you have two tanks feeding a single two-stage regulator, you will need two pigtails — one per tank.
The 100833 Stainless Overbraid Propane Pigtail with Back Check is available in multiple standard lengths, all sharing the same RV Type 1 x 1/4" male inverted flare connector configuration with stainless steel overbraid protection: • 100833-12-MBS — 12" (1 ft) • 100833-15-MBS (This Product) — 15" • 100833-24-MBS — 24" (2 ft) • 100833-36-MBS — 36" (3 ft) — the longest available with stainless overbraid If you need a length longer than 36" or prefer standard (non-overbraided) rubber hose, see the MB Sturgis 100575 series, available in lengths up to 60".
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 Inverted Flare End: Thread the 1/4" male inverted flare fitting into the regulator's matching female inlet 4. Tighten Securely: Tighten both connections to a secure, leak-free fit without overtightening 5. For Dual-Tank Setups: Repeat installation for the second tank and pigtail, connecting both to the two-stage regulator's separate inlets 6. Leak Test: Slowly open the tank valve(s) 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) 100833-15-MBS Stainless Overbraid Propane Pigtail — 15" Length • RV Type 1 (ACME) Connector with Built-In Back Check Valve • 1/4" Male Inverted Flare Fitting • Stainless Steel Overbraid Protection NOT Included: • Second pigtail (required for dual-tank setups — purchase separately) • 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.