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Alpha 44.5 Gallon RV Holding Tank - Premium Waste Management Solution
The Alpha VR29578REHBLANK is a professional-grade 44.5-gallon RV holding tank engineered for reliable waste management in recreational vehicles. Measuring 58" x 29.5" x 8.5", this OEM-quality tank features rotational molded construction that delivers superior durability and leak-proof performance for years of trouble-free service.
Why Choose the Alpha VR29578REHBLANK Holding Tank?
This isn't just another holding tank—it's the same premium component used by major RV manufacturers in new builds. The seamless, one-piece rotational molded design eliminates weak points and weld seams that can fail over time. Every tank undergoes rigorous individual leak testing before shipment, ensuring you receive a product that's ready for immediate installation and reliable operation.
With a generous 44.5-gallon capacity, this tank provides extended holding capacity for longer trips between dump stations. The low-profile 8.5" height makes it ideal for installations where vertical clearance is limited, while the 58" x 29.5" footprint fits a wide range of RV chassis configurations.
Technical Specifications
- Capacity: 44.5 gallons
- Dimensions: 58" Length x 29.5" Width x 8.5" Height
- Part Number: VR29578REHBLANK
- SKU: VR29578REHCD
- Construction: Rotational molded high-density polyethylene
- Weight (Empty): 134 lbs
- Design: Seamless one-piece construction
- Quality Testing: Individually leak-tested before shipping
- Application: RV waste holding tank
Key Features & Benefits
Rotational Molded Construction: Unlike cheaper welded tanks, our rotational molding process creates a seamless, one-piece tank with uniform wall thickness and no weak points. This manufacturing method produces superior strength and eliminates the risk of seam failures.
OEM-Grade Quality: These are the exact same tanks installed in new RVs by major manufacturers. When you choose Alpha, you're getting factory-quality components with proven reliability and perfect compatibility.
Built for RV Life: Designed specifically to withstand the constant movement, vibration, road shock, and temperature fluctuations experienced during RV travel. The robust construction ensures long-term durability even under demanding conditions.
Leak-Tested Guarantee: Every single tank is submerged and pressure-tested for leaks before it leaves our facility. This rigorous quality control process ensures you receive a defect-free product ready for installation.
Health & Safety Compliant: Manufactured to strict specifications that meet all necessary health and safety requirements for RV waste management systems. Safe for potable water system proximity and compliant with industry standards.
Compatible RV Models & Applications
This 44.5-gallon holding tank is designed as a direct replacement for RVs originally equipped with the VR29578REHBLANK or similar-sized tanks. The 58" x 29.5" x 8.5" dimensions make it suitable for:
- Class A motorhomes with mid-to-large holding capacity requirements
- Fifth wheel trailers requiring extended waste holding
- Travel trailers with limited vertical clearance (low-profile design)
- RV renovations and custom builds requiring reliable waste management
- Replacement installations where original tank has failed or degraded
Verify Fitment: Always measure your existing tank compartment and compare dimensions before ordering. Check length, width, height, and inlet/outlet positioning to ensure proper fit.
Compare Similar Alpha Holding Tanks
| Model | Capacity | Dimensions (L×W×H) | Part Number | Best For | View Details |
|---|---|---|---|---|---|
| VR29578REHBLANK | 44.5 Gallons | 58" × 29.5" × 8.5" | VR29578REHBLANK | Extended trips, low-profile installations | Current Product |
| 939BLANK | 50 Gallons | 64" × 32" × 8" | 939BLANK | Maximum capacity, extended boondocking | View Details |
| VR28598HLBLANK | 40 Gallons | 59" × 28" × 8" | VR28598HLBLANK | Similar footprint, slightly less capacity | View Details |
| 411BLANK | 37 Gallons | 57" × 26" × 8" | 411BLANK | Compact footprint, weekend trips | View Details |
| VR24607HRBLANK | 28.5 Gallons | 60" × 24" × 7" | VR24607HRBLANK | Narrow width, ultra-low profile | View Details |
💡 Helpful Tip: Choose your holding tank capacity based on your typical camping style. For extended boondocking or full-time RVing, larger capacity tanks (40-50 gallons) reduce dump frequency. For weekend trips with hookups, smaller tanks (28-37 gallons) may be sufficient.
Installation & Compatibility Notes
Professional installation is recommended for holding tank replacement. Ensure proper support, secure mounting, and correct plumbing connections. Verify inlet/outlet positioning matches your existing configuration before installation.
Important: This is a holding tank only and does not include fittings, sensors, or mounting hardware unless specifically noted. Check your existing tank for required accessories before ordering.
Frequently Asked Questions
Q: Is this tank suitable for both black water and gray water applications?
A: Yes, Alpha holding tanks can be used for either black water (toilet waste) or gray water (sink/shower drainage) applications. The rotational molded construction is suitable for all RV waste management needs.
Q: How do I know if this tank will fit my RV?
A: Measure your existing tank compartment carefully, including length, width, height, and clearance around inlet/outlet fittings. Compare these measurements to the 58" × 29.5" × 8.5" dimensions. Also verify inlet/outlet positioning matches your plumbing configuration.
Q: Does this tank come with sensors installed?
A: Tank sensor configuration varies by model. Check the product specifications or contact us through the AI Live Chat for specific sensor information for this part number.
Q: What is the warranty on Alpha holding tanks?
A: Alpha tanks are backed by manufacturer warranty against defects in materials and workmanship. Additionally, ElkhartRVParts.com offers a 30-day return policy for your peace of mind.
Q: Can I install this tank myself?
A: While experienced RV owners with proper tools can install holding tanks, we recommend professional installation to ensure proper mounting, sealing, and plumbing connections. Improper installation can lead to leaks and system failures.
Why Buy from ElkhartRVParts.com?
- Authorized Alpha Dealer: We source directly from Alpha Systems, ensuring you receive genuine OEM-grade products, not inferior aftermarket imitations
- Expert Support: Our AI Live Chat provides deep product knowledge and installation guidance when you need it
- Quality Guarantee: Every tank is individually leak-tested before shipping—we stand behind the quality of every product we sell
- Fast Shipping: Quick processing and reliable delivery to get your RV back on the road
- 30-Day Returns: Shop with confidence knowing you can return products within 30 days if needed
Order Your Alpha Holding Tank Today
Don't compromise on your RV's waste management system. The Alpha VR29578REHBLANK 44.5-gallon holding tank delivers the OEM-quality performance and durability you need for worry-free RV adventures. With rotational molded construction, rigorous leak testing, and proven reliability, this tank is built to last.
Need help with product selection or have questions? Use our AI Live Chat for instant assistance with compatibility, specifications, and installation guidance.
| Width (inches) | 29.5 |
|---|---|
| Height (inches) | 8.5 |
| Length (inches) | 58 |
| Capacity (gallons) | 44.5 |
| Construction material | Rotational molded plastic |
- What is the capacity of the alpha holding tank? The Alpha holding tank has a capacity of 44.5 gallons.
- What are the dimensions of this holding tank? The holding tank measures 58 inches in length, 29.5 inches in width, and 8.5 inches in height.
- Is this tank compatible with most rvs? Yes, this tank is an authentic OEM part used by major RV manufacturers, ensuring perfect compatibility and performance.
- What materials and construction does this holding tank have? It is made using extra durable rotational molded construction, creating a seamless one-piece tank for superior strength and longevity.
- Has the tank been tested for leaks? Yes, every tank is individually submerged and tested for leaks before shipping to guarantee 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.