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Alpha VR22548HBLANK RV Holding Tank - 30 Gallon Center Drain Black Water Storage
The Alpha VR22548HBLANK holding tank delivers reliable 30-gallon black water storage capacity with center drain orientation and OEM-grade rotational molded construction. This 54" x 22" x 8.5" holding tank features seamless one-piece design, leak-tested quality assurance, and center drain configuration for RVs with centered plumbing layouts.
Why Choose the Alpha VR22548HBLANK Holding Tank?
Alpha's VR22548HBLANK holding tank solves the challenge of replacing worn or damaged RV waste tanks with authentic OEM-quality construction. The 30-gallon capacity provides adequate black water storage for extended trips, while the rotational molded seamless design eliminates weak points and potential leak areas found in welded tanks.
At 54" long, 22" wide, and 8.5" tall, this holding tank fits a wide range of RV configurations. The narrow 22" width makes it ideal for RVs with limited side-to-side clearance. The center drain orientation provides balanced drainage and is ideal for RVs with centered plumbing configurations.
Key Features and Specifications
- Capacity: 30 gallons black water storage
- Dimensions: 54" length x 22" width x 8.5" 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: VR22548HBLANK
- Manufacturer: Alpha
- Quality Testing: 100% leak-tested before shipping
- Grade: OEM quality - same tanks used in new RV builds
Perfect For These Applications
The 54" x 22" x 8.5" size with 30-gallon capacity and center drain makes the VR22548HBLANK ideal for:
- Travel trailer black water tank replacement with center plumbing
- Class C motorhome waste tank upgrades
- Fifth wheel holding tank repairs
- RVs with narrow tank compartments and centered plumbing
- Custom RV builds requiring 30-gallon capacity with center drain
- Replacement for damaged or leaking holding tanks
- Applications with limited side-to-side clearance
- Extended trip RVs needing reliable waste storage
Center Drain Orientation - What It Means
The VR22548HBLANK 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 narrow 54" 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.
Narrow Width Design
The VR22548HBLANK features a narrow 22" width, making it ideal for RVs with limited side-to-side clearance. This configuration offers several advantages:
- 22" width fits in narrow compartments
- 54" length provides good capacity
- 8.5" height fits in most standard compartments
- Center drain works perfectly with narrow design
- Provides 30-gallon capacity in a narrow footprint
- Perfect for RVs with space constraints
Compare Similar Alpha Holding Tanks
| Model | Capacity | Dimensions (L x W x H) | Drain Side | Part Number | Best For | View Details |
|---|---|---|---|---|---|---|
| VR22548HBLANK | 30 Gallons | 54" x 22" x 8.5" | Center Drain | VR22548HBLANK | Narrow width, center plumbing | Current Product |
| VB23528HL | 30 Gallons | 52" x 23" x 8" | Left Drain | VB23528HL | Same capacity, left drain, similar size | View |
| VB23528HR | 30 Gallons | 52" x 23" x 8" | Right Drain | VB23528HR | Same capacity, right drain, similar size | View |
| VR23528HLBLANK | 30 Gallons | 52" x 23" x 8" | Left Drain | VR23528HLBLANK | Same capacity, left drain blank, similar size | View |
Helpful Tip: Center drain tanks like the VR22548HBLANK provide balanced drainage and work perfectly with narrow width 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 (54" L x 22" W x 8.5" 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
- Narrow Width Options: 22" width design fits in tight spaces
- 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 VR22548HBLANK holding tank?
The Alpha VR22548HBLANK holding tank has a 30-gallon capacity for black water storage. This provides adequate waste storage for extended RV trips.
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 narrow 22" width.
What are the dimensions of the VR22548HBLANK?
The VR22548HBLANK measures 54" long x 22" wide x 8.5" tall. The narrow 22" width makes it ideal for RVs with limited side-to-side clearance. 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 VR22548HBLANK 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 RV?
The VR22548HBLANK fits RVs with tank compartments that accommodate 54" length x 22" width x 8.5" height, plus clearance for fittings and connections. The narrow 22" width is perfect for RVs with limited side-to-side space, and your RV should have centered plumbing to be compatible with this center drain tank.
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.
How long can I go between dump stations with 30 gallons?
The 30-gallon capacity provides adequate time between dump stations. For a family of 4, you can typically go 4-5 days depending on usage patterns. This makes the VR22548HBLANK ideal for extended trips.
Authentic Alpha Parts from Elkhart RV Parts
When you order the VR22548HBLANK 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 VR22548HBLANK Center Drain Holding Tank Today
Replace your worn or damaged RV holding tank with the reliable Alpha VR22548HBLANK center drain holding tank. With 30-gallon capacity, center drain orientation, narrow 22" width, 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.
Ships via freight. Order now for fast delivery of your authentic Alpha holding tank.
| Material | Rotational molded plastic |
|---|---|
| Width (inches) | 22 |
| Height (inches) | 8.5 |
| Length (inches) | 54 |
| Capacity (gallons) | 30 |
- What is the capacity of the alpha holding tank? The Alpha holding tank has a capacity of 30 gallons.
- What are the dimensions of this 30 gallons holding tank? The dimensions of the holding tank are 54 inches in length, 22 inches in width, and 8.5 inches in height.
- Is this holding tank suitable for rv use? Yes, this holding tank is designed specifically for RV use and is built to withstand movement, vibration, and temperature changes experienced during RV travel.
- What material is the alpha holding tank made of? The Alpha holding tank is made using extra durable rotational molded construction, creating a seamless one-piece tank for superior strength and longevity.
- Are these holding tanks tested for leaks before shipping? Yes, each tank is individually submerged and rigorously tested for leaks to ensure a 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.

