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Alpha VR22466HBLANK RV Holding Tank - 18 Gallon Center Drain Compact Low-Profile Black Water Storage
The Alpha VR22466HBLANK holding tank delivers reliable 18-gallon black water storage capacity with center drain orientation and OEM-grade rotational molded construction. This 46" x 22" x 6" holding tank features seamless one-piece design, leak-tested quality assurance, and center drain configuration perfect for compact RVs requiring ultra-low-profile installations with centered plumbing.
Why Choose the Alpha VR22466HBLANK Holding Tank?
Alpha's VR22466HBLANK holding tank solves the challenge of replacing worn or damaged RV waste tanks in compact, shallow compartments with authentic OEM-quality construction. The 18-gallon capacity provides adequate black water storage for weekend trips in small RVs, while the rotational molded seamless design eliminates weak points and potential leak areas found in welded tanks.
At 46" long, 22" wide, and only 6" tall, this holding tank features a compact, ultra-low-profile design that maximizes capacity in tight spaces. The minimal 6" height makes it ideal for under-floor installations, pop-up campers, and small travel trailers with severe vertical clearance limitations. The center drain orientation provides balanced drainage and is ideal for RVs with centered plumbing configurations.
Key Features and Specifications
- Capacity: 18 gallons black water storage
- Dimensions: 46" length x 22" width x 6" height
- Drain Orientation: Center Drain
- Configuration: Blank (no pre-installed fittings)
- Construction: Rotational molded seamless one-piece design
- Material: High-density polyethylene (HDPE)
- Part Number: VR22466HBLANK (SKU: VR22466HCD)
- Manufacturer: Alpha
- Quality Testing: 100% leak-tested before shipping
- Grade: OEM quality - same tanks used in new RV builds
Perfect For These Applications
The 46" x 22" x 6" size with 18-gallon capacity and center drain makes the VR22466HBLANK ideal for:
- Pop-up camper black water tank replacement with center plumbing
- Small travel trailer waste tank upgrades
- Compact Class B van conversion holding tanks with centered drains
- Under-floor holding tank installations
- RVs with severe vertical clearance limitations and centered plumbing
- Custom RV builds requiring compact low-profile design with center drain
- Weekend camping rigs with limited space
- Teardrop trailer waste systems
Center Drain Orientation - What It Means
The VR22466HBLANK features center drain orientation, which means the drain outlet is positioned in the center of the tank. This configuration offers several advantages:
- Balanced drainage from both sides of the tank
- Ideal for RVs with centered plumbing layouts
- Provides optimal flow and complete drainage
- Perfect for the compact 46" x 22" footprint design
- Eliminates need for offset plumbing connections
Note: Professional installation recommended. You'll need to drill and install appropriate fittings, gaskets, and hardware based on your RV's plumbing system.
Compact Low-Profile Design
The VR22466HBLANK features a compact 46" x 22" x 6" profile, combining moderate length with ultra-low height. This configuration offers several advantages:
- Ultra-low 6" height fits in extremely shallow compartments
- Compact 46" length fits in shorter spaces than larger tanks
- 22" width provides balanced footprint
- Perfect for under-floor installations with minimal clearance
- Ideal for pop-up campers and small trailers
- Center drain works perfectly with compact design
- Provides 18-gallon capacity in a space-efficient design
- Excellent for weekend camping trips
Compare Similar Alpha Holding Tanks
| Model | Capacity | Dimensions (L x W x H) | Drain Side | Part Number | Best For | View Details |
|---|---|---|---|---|---|---|
| VR22466HBLANK | 18 Gallons | 46" x 22" x 6" | Center Drain | VR22466HBLANK | Compact low-profile, center plumbing | Current Product |
| VR32325HBLANK | 15 Gallons | 32" x 32" x 5.125" | Check specs | VR32325HBLANK | Smaller capacity, square footprint, even lower | View |
| VR24606HBLANK | 22.5 Gallons | 60" x 24" x 6" | Center Drain | VR24606HBLANK | Larger capacity, same low 6" height | View |
| VR16366HBLANK | 9.5 Gallons | 36" x 16" x 6" | Center Drain | VR16366HBLANK | Ultra-compact, same low 6" height | View |
Helpful Tip: Center drain tanks like the VR22466HBLANK provide balanced drainage and work perfectly with compact designs. Always verify your RV's drain location before ordering.
Installation and Compatibility
This holding tank ships as a blank unit requiring professional installation. You'll need to:
- Verify tank dimensions fit your compartment (46" L x 22" W x 6" H minimum)
- Verify center drain orientation matches your RV's plumbing layout
- Drill appropriate holes for drain outlet (center position), vent, and sensor fittings
- Install gaskets and threaded fittings with proper sealant
- Connect to existing RV plumbing system at center position
- Secure tank with appropriate mounting straps or brackets
- Test all connections for leaks before use
Professional installation strongly recommended. Improper installation can lead to leaks, odors, and system failures.
What Makes Alpha Holding Tanks Superior?
Alpha has built a reputation for engineering excellence in the RV industry. Their holding tanks feature:
- Rotational Molded Construction: Seamless one-piece design eliminates weak points and potential leak areas
- OEM Quality Standards: Same tanks used by major RV manufacturers in new builds
- 100% Leak Testing: Every tank is individually submerged and tested before shipping
- High-Density Polyethylene: Superior chemical resistance and durability for waste applications
- Center Drain Configuration: Balanced drainage ideal for centered plumbing systems
- Compact Low-Profile Options: 6" height design perfect for shallow installations
- Blank Configuration Options: Complete flexibility for custom plumbing installations
- Strict Quality Control: Manufactured to meet all health and safety requirements
- Built for RV Life: Designed to withstand constant movement, vibration, and temperature changes
- Long Service Life: Durable construction provides years of reliable performance
Frequently Asked Questions
What is the capacity of the VR22466HBLANK holding tank?
The Alpha VR22466HBLANK holding tank has an 18-gallon capacity for black water storage. This provides adequate waste storage for weekend trips in compact RVs and pop-up campers.
What does center drain orientation mean?
Center drain means the drain outlet is positioned in the center of the tank, providing balanced drainage from both sides. This configuration is ideal for RVs with centered plumbing layouts and works perfectly with the tank's compact 46" x 22" footprint.
What makes this tank's dimensions unique?
The VR22466HBLANK features a compact low-profile design (46" x 22" x 6") with center drain that combines moderate length with ultra-low height. This makes it ideal for pop-up campers and small travel trailers with limited space and centered plumbing.
What are the dimensions of the VR22466HBLANK?
The VR22466HBLANK measures 46" long x 22" wide x 6" tall. Make sure to measure your RV's tank compartment carefully, allowing extra space for fittings, connections, and mounting hardware.
Is this tank leak-tested?
Yes, every Alpha VR22466HBLANK holding tank is individually submerged and leak-tested before shipping. This rigorous quality control ensures you receive a reliable, problem-free tank ready for installation.
What does blank configuration mean?
Blank configuration means the tank has no pre-installed fittings. You have complete flexibility to drill and install drain outlets (at center position), vent fittings, and sensor ports exactly where your RV's plumbing system requires them.
Will this fit my pop-up camper?
The VR22466HBLANK's compact 46" x 22" x 6" size with center drain makes it perfect for pop-up campers. Verify your compartment accommodates these dimensions, plus clearance for fittings and connections.
Do I need professional installation?
Yes, professional installation is strongly recommended. Installing a holding tank requires drilling precise holes, installing fittings with proper gaskets and sealant, connecting to plumbing systems, and thorough leak testing. Improper installation can lead to serious problems including leaks and odors.
Is 18 gallons enough capacity?
For weekend camping trips in compact RVs and pop-up campers, 18 gallons provides adequate capacity for 2-3 people. For longer trips or larger groups, you may need to dump more frequently or consider a larger capacity tank if your RV has space.
Authentic Alpha Parts from Elkhart RV Parts
When you order the VR22466HBLANK from Elkhart RV Parts, you receive 100% authentic Alpha products backed by our commitment to quality. We are an authorized Alpha dealer, ensuring you receive genuine OEM-grade parts with full manufacturer quality standards.
Our team understands RV holding tank systems and can help you select the right tank size, drain orientation, and configuration for your specific application. Have questions about sizing, drain orientation, or compatibility? Use our AI Live Chat for expert product guidance and technical support.
Order Your Alpha VR22466HBLANK Center Drain Compact Holding Tank Today
Replace your worn or damaged RV holding tank with the reliable Alpha VR22466HBLANK center drain compact low-profile holding tank. With 18-gallon capacity, center drain orientation, ultra-low 6" height, compact 46" length, rotational molded construction, and 100% leak-tested quality, this holding tank delivers the OEM-grade performance you need for years of trouble-free RV adventures in compact spaces.
Ships via freight. Order now for fast delivery of your authentic Alpha holding tank.
| Width (inches) | 22 |
|---|---|
| Height (inches) | 6 |
| Length (inches) | 46 |
| Capacity (gallons) | 18 |
| Construction material | Rotational Molded Plastic |
- What is the capacity of the alpha holding tank vr22466hblank? The Alpha holding tank VR22466HBLANK has a capacity of 18 gallons.
- What are the dimensions of this 18 gallons holding tank? The dimensions of the tank are 46 inches in length, 22 inches in width, and 6 inches in height.
- Is this holding tank suitable for rv use? Yes, this holding tank is specifically designed for the RV lifestyle, built to withstand movement, vibration, and temperature changes experienced during travel.
- How durable is the alpha vr22466hblank holding tank? The tank is made using extra durable rotational molded construction, creating a seamless one-piece tank that offers superior strength and longevity.
- Does this holding tank come with any quality assurance or testing? Yes, every tank is individually submerged and tested for leaks before shipping to ensure reliable and problem-free installation.
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.

