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Flame King Thermo Plastic Hose Assembly for LP and Natural Gas, 40 Inch, 3/8 Inch

Flame King Thermo Plastic Hose Assembly for LP and Natural Gas, 40 Inch, 3/8 Inch

SKU: MB100383-40
Regular price $19.95 USD
Regular price Sale price $19.95 USD
Sale Sold out
Shipping calculated at checkout.
Why We Call It Red Chair Time ❤️ - Click to Read
Up north at the lake, life was simple—fishing, boating, bike rides, and sun-soaked afternoons. But the heart of it all was my mother, who loved nothing more than relaxing on the patio in her Tall Red Shellback Adirondack Chairs, surrounded by family and friends.

When she lost her battle with cancer in 2023, I started Red Chair Time to honor her and help others still fighting. Those chairs symbolized comfort, connection, and peace—and now, every piece we sell carries that spirit forward.

This isn’t just about selling and living the lake life. It's about a life with purpose. A portion of every purchase supports cancer research, because our mission is personal. We’re here to create beautiful spaces—and to fund hope.

Thank you for visiting!


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Heavy-Duty Hose Assembly for Reliable Gas Flow

Built for performance and safety, the Flame King 40-Inch Thermo Plastic Hose Assembly ensures a secure and durable connection for your LP or natural gas system.

Rugged & Flexible Design

Crafted with a 3/8" ID thermoplastic body, this hose delivers long-lasting flexibility while standing up to the demands of RV, travel trailer, and outdoor gas systems.

Precision Connections

Featuring a 3/8" MNPT x 1/2" Female Flare Swivel, the hose provides a tight, dependable fit, preventing leaks and ensuring consistent gas flow every time.

Built for Safety

Tested and UL569 certified, this hose is rated for up to 350 PSI and withstands temperatures from -40°F to 140°F (-40°C to 60°C), making it reliable in virtually any climate.

Versatile Applications

Commonly used on RVs and travel trailers, this hose connects the two-stage regulator to the permanent gas piping system-keeping your setup safe, efficient, and road-ready.

Specifications:

  • Length: 40 inches
  • Inside Diameter: 3/8"
  • Connections: 3/8" MNPT x 1/2" Female Flare Swivel
  • Max Pressure: 350 PSI
  • Temperature Range: -40°F to 140°F (-40°C to 60°C)
  • Certification: UL569
  • Weight: 9.1 oz
  • Dimensions: 40" x 1" x 1"

 

Flame King Thermo Plastic Hose Assembly For LP and Natural Gas

 

Flame King Thermo Plastic Hose Assembly For LP and Natural Gas

    Quality and Service

    At Flame King, we manufacture propane tanks and cylinders trusted worldwide for their exceptional quality and reliability. Our commitment to excellence goes beyond the products - we're dedicated to providing outstanding service to every customer. Each tank we produce exceeds industry standards and is crafted in award-winning facilities recognized for their focus on safety and quality. With Flame King, you can count on superior performance and complete peace of mind.

    Certifications You Can Count On

    At Flame King, we don't just build propane cylinders - we craft trusted companions designed to keep your adventures and daily needs fueled safely and reliably. Whether it's a compact 1 lb. tank for your next camping trip or a heavy-duty 420 lb. cylinder for commercial use, each product is made with care and precision.

    Our portable propane cylinders meet strict Department of Transportation (DOT) and Transport Canada (TC) standards, so you can feel confident wherever you go. And for our ASME-certified tanks, they're crafted in facilities certified to ISO 9002 quality standards - because we believe safety and reliability should never be compromised.

    With Flame King, you're not just buying a tank; you're investing in peace of mind that lasts.

    Durable

    Propane equipment faces tough conditions - so we build our tanks from rugged, premium materials designed to stand up to the challenge and deliver lasting performance you can trust.

    Safe

    At Flame King, safety isn't just a feature - it's our promise. Every tank is rigorously tested in real-world conditions to ensure reliable, dependable performance when it matters most.

    Smart Design, Powerful Performance

    At Flame King, we fuse cutting-edge technology with durable engineering to deliver propane solutions that are as intuitive as they are reliable - making every experience simpler, safer, and smarter.

    Committed to a Greener Future

    At Flame King, protecting the planet is at the heart of everything we do. That's why we pioneered the first refillable 1 lb propane tank- helping you reduce waste and embrace a more sustainable way to power your outdoor adventures.

    About Us

    At Flame King, we believe in the power of propane to fuel life's essential moments - from backyard cookouts to off-grid adventures. For over 20 years, we've been at the heart of it all, designing propane tanks and accessories that people rely on, day in and day out.

    Built on a foundation of innovation and integrity, our products are engineered for performance, safety, and longevity. From our durable steel cylinders to our advanced heating and cooking solutions, every Flame King product is crafted to help you heat, power, and cook - wherever life takes you.

    We've grown from a trusted manufacturer into a brand that supports sustainability, smarter energy use, and better outdoor living. Whether you're camping under the stars or firing up the grill in your own backyard, Flame King is there to keep the flame alive.

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