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Elkhart Plastics 1.5" Barbed Hub Coupler - Essential RV Tank Fitting
The Elkhart Plastics 1.5" Barbed Hub Coupler (Model U150BC) is a premium OEM-grade fitting designed specifically for RV fresh water tanks, holding tanks, and gray water systems. This hard-to-find black plastic coupler provides a secure, leak-free connection when used with the 1.5" Uniseal Grommet (U150), making it an essential component for RV plumbing repairs, upgrades, and new installations.
Whether you're repairing a leaking tank fitting, upgrading your RV's water system, or installing new plumbing connections, this barbed hub coupler delivers the reliability and durability you need for worry-free travels. Manufactured by Elkhart Plastics/Ameri-Kart, a trusted name in RV components, this fitting meets OEM specifications for quality and performance.
Key Features and Benefits
OEM-Quality Construction: Manufactured by Elkhart Plastics/Ameri-Kart to exact OEM specifications, ensuring perfect fit and long-lasting performance in demanding RV applications.
Perfect Compatibility: Designed to work seamlessly with 1.5" Uniseal Grommet (Model U150) for secure, watertight connections in RV tank installations.
Versatile Applications: Ideal for fresh water tanks, holding tanks, gray water tanks, drainage pipes, and exhaust pipe connections in RVs, campers, motorhomes, and travel trailers.
Hard-to-Find Part: Not available at local hardware stores - this specialized RV fitting is designed specifically for recreational vehicle plumbing systems.
Durable Black Finish: UV-resistant black plastic construction withstands temperature extremes, chemicals, and the rigors of RV life for years of reliable service.
Easy Installation: Barbed design creates a secure grip on flexible hose while the hub end provides a solid connection point for tank penetrations when used with Uniseal grommets.
Technical Specifications
- Model Number: U150BC
- Size: 1.5 inches (1-1/2")
- Type: Barbed Hub Coupler
- Color: Black
- Material: High-grade plastic
- Compatible With: 1.5" Uniseal Grommet (U150)
- SKU: 190B
- Barcode: 75914904
- Weight: 0.5 lbs
- Country of Origin: USA
- Manufacturer: Elkhart Plastics/Ameri-Kart
Common Applications and Use Cases
RV Fresh Water Tank Connections: Create secure plumbing connections for fresh water tank fill lines, vent lines, and outlet connections.
Holding Tank Repairs: Replace damaged or worn fittings on black water and gray water holding tanks to restore leak-free operation.
Tank Sensor Installation: Ideal for installing tank level sensors and monitoring equipment through tank walls using Uniseal grommets.
Drainage System Upgrades: Perfect for connecting drainage pipes and waste water lines in RV plumbing systems.
Vent Pipe Connections: Use for secure connections in tank vent systems to prevent odors and maintain proper tank pressure.
DIY RV Modifications: Essential component for custom RV plumbing projects, tank installations, and system upgrades.
Why Choose This Barbed Hub Coupler
Authentic OEM Part: Unlike generic hardware store fittings, this is a genuine Elkhart Plastics component designed specifically for RV applications with proper sizing and materials for tank installations.
Proven Reliability: With an average customer rating of 4.5 stars from 8 verified reviews, RV owners trust this fitting for critical plumbing repairs and installations.
Professional-Grade Quality: The same fitting used by RV manufacturers and professional repair shops - now available directly to DIY RV owners.
Perfect Fit Guarantee: Engineered to work perfectly with 1.5" Uniseal grommets for secure, leak-free tank penetrations every time.
Cost-Effective Solution: Avoid expensive RV shop labor costs by installing this professional-grade fitting yourself - straightforward installation with basic tools.
Installation Tips
For best results, use this barbed hub coupler with the 1.5" Uniseal Grommet (U150) to create watertight tank penetrations. The Uniseal grommet provides a flexible, leak-proof seal that accommodates slight misalignment and tank wall movement. Clean all surfaces thoroughly before installation, and ensure the barbed end is fully inserted into your hose or tubing for maximum grip. The hub end should be inserted through the Uniseal grommet that's already installed in your tank wall.
Complete Your RV Tank Setup
This barbed hub coupler works perfectly with our 1.5" Black Uniseal Grommet (U150) or 1.5" White Uniseal Grommet (U150-W) for complete tank fitting installations. For larger tank connections, consider our 3" Barbed Coupler for RV Holding Tanks.
Compare RV Tank Barbed Couplers
| Model | Size | Compatible Grommet | Best For | View Details |
|---|---|---|---|---|
| U150BC (This Product) | 1.5" | U150 / U150-W | Fresh water tanks, standard holding tanks, vent lines | Current Product |
| U300BC | 3" | U300 Series | Large holding tanks, high-flow applications, main drain lines | View Details → |
Pro Tip: Choose your coupler size based on your tank's existing fittings and flow requirements. The 1.5" size is ideal for most standard RV fresh water and holding tank applications, while the 3" size is better suited for large capacity tanks and main waste drain lines.
Customer Reviews Highlight
RV owners consistently praise this fitting for its quality construction, perfect fit with Uniseal grommets, and leak-free performance. Customers appreciate that it's a hard-to-find part that's not available at local hardware stores, and they value the authentic OEM quality for critical RV plumbing repairs.
What's Included
- One (1) Elkhart Plastics 1.5" Barbed Hub Coupler - Black (Model U150BC)
Note: Uniseal grommet sold separately. We recommend purchasing the 1.5" Uniseal Grommet U150 for complete installation.
Frequently Asked Questions
Q: What size Uniseal grommet do I need with this coupler?
A: This U150BC coupler is designed to work with the 1.5" Uniseal Grommet, model U150 (available in black or white).
Q: Can I use this fitting without a Uniseal grommet?
A: While the barbed end can connect to hoses independently, the hub end is specifically designed to work with Uniseal grommets for tank wall penetrations. For best results and leak-free performance, use with the appropriate Uniseal grommet.
Q: Is this suitable for potable water applications?
A: Yes, this fitting is made from materials suitable for fresh water tank applications in RVs.
Q: Will this fit my RV's holding tank?
A: If your tank currently uses 1.5" fittings or you're installing new 1.5" penetrations with U150 Uniseal grommets, this coupler will fit perfectly. For questions about compatibility with your specific RV model, use our AI Live Chat for assistance.
Q: What's the difference between this and a regular hardware store fitting?
A: This is an OEM-grade RV-specific fitting designed to work with Uniseal grommets. Hardware store fittings typically aren't sized correctly for RV tank applications and don't provide the same leak-free performance.
Order with Confidence
As an authorized dealer of Elkhart Plastics/Ameri-Kart products, we guarantee you're receiving 100% authentic OEM-grade parts. Every fitting is quality-checked before shipping to ensure you receive the exact part you need for your RV plumbing project.
Need help with installation or compatibility questions? Use our AI Live Chat for expert assistance with product selection, installation guidance, and technical support.
Ready to Fix Your RV Tank Fitting?
Order now for fast shipping and get your RV plumbing system back in perfect working order!
| Material | Black Plastic |
|---|---|
| Compatibility | 1-1/2 inch Uniseal Grommet |
| Barb size (inches) | 1.5 |
- What size is the barb x hub coupler? The Barb x Hub Coupler is 1-1/2 inches in size.
- Can this coupler be used with uniseal grommets? Yes, this coupler can be used with the 1-1/2 inch Uniseal Grommet #U150.
- What type of tanks is this coupler designed for? This coupler is designed for RV fresh holding and water tanks.
- What color is the 1-1/2 inch barb x hub coupler? The coupler is black in color.
- Who is the vendor for this barb x hub coupler? The vendor for this product is Affordable RVing.
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.