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Alpha 42 Gallon RV Holding Tank - VR334985HBLANK
The Alpha 42 gallon RV holding tank (VR334985HBLANK) is a premium OEM-grade replacement tank designed for reliable black water waste management in recreational vehicles. Measuring 49.5" x 33" x 8.375", this rotational molded holding tank delivers the same quality and performance as tanks installed in new RV builds by major manufacturers.
Why Choose This Alpha Holding Tank?
- 100% Authentic OEM Grade: Same high-quality tanks used in new RV builds by major manufacturers, ensuring perfect compatibility and performance
- Superior Rotational Molded Construction: Seamless, one-piece design provides exceptional strength and longevity compared to traditional welded tanks
- Rigorous Quality Testing: Every tank is individually submerged and tested for leaks before shipping, guaranteeing a reliable, problem-free installation
- Built for RV Life: Engineered to withstand constant movement, vibration, and temperature changes experienced during RV travel
- Health & Safety Compliant: Manufactured to strict specifications, meeting all necessary health and safety requirements for RV waste management
Technical Specifications
- Capacity: 42 Gallons
- Dimensions: 49.5" L x 33" W x 8.375" H
- Part Number: VR334985HBLANK
- UPC: 779334985009
- Brand: Alpha
- Construction: Rotational Molded Polyethylene
- Type: Black Water Holding Tank
- Configuration: Blank (no pre-installed fittings)
Compatible RV Models & Applications
This 42 gallon holding tank is designed as a direct replacement for RVs requiring a tank with these exact dimensions. The blank configuration allows you to customize fitting placement to match your specific RV's plumbing layout. Commonly used in:
- Travel Trailers
- Fifth Wheels
- Motorhomes
- Toy Haulers
- Park Models
Compare Similar Capacity Holding Tanks
| Model | Capacity | Dimensions (L x W x H) | Part Number | Best For | View Details |
|---|---|---|---|---|---|
| Alpha 42 Gallon | 42 Gallons | 49.5" x 33" x 8.375" | VR334985HBLANK | Wide, low-profile installations | Current Product |
| Alpha 40 Gallon | 40 Gallons | 59" x 28" x 8" | VR28598HLBLANK | Longer, narrower spaces | View Details → |
| Alpha 45 Gallon | 45 Gallons | 51" x 34" x 7.875" | VR345175HCD | Slightly larger capacity | View Details → |
| Alpha 50 Gallon | 50 Gallons | 64" x 32" x 8" | 939001CD | Maximum capacity upgrade | View Details → |
💡 Helpful Tip: When selecting a replacement holding tank, always measure your existing tank space carefully. Consider not just capacity, but also the dimensional footprint to ensure proper fit in your RV's compartment.
Installation & Compatibility
This blank tank configuration gives you complete flexibility to install fittings exactly where your RV's plumbing requires them. Before installation, carefully measure your existing tank and verify the dimensions match your available space. The rotational molded construction ensures consistent wall thickness and superior durability throughout the tank.
What's Included
- 1x Alpha 42 Gallon Holding Tank (VR334985HBLANK)
- Factory Quality Tested & Certified
- Note: Fittings, sensors, and mounting hardware sold separately
Frequently Asked Questions
What does "blank" mean for this holding tank?
A blank tank has no pre-installed fittings, drain outlets, or sensor holes. This allows you to customize the fitting placement to match your specific RV's plumbing configuration, making it a versatile replacement option for many different RV models.
How do I know if this tank will fit my RV?
Measure your existing tank's length, width, and height, and compare to this tank's dimensions (49.5" x 33" x 8.375"). Also measure the available space in your RV's tank compartment to ensure adequate clearance for installation and removal.
Is this tank suitable for both black and gray water?
While this tank is designed primarily for black water (sewage) applications, it can technically be used for gray water as well. However, we recommend using tanks specifically designated for their intended purpose to maintain proper RV sanitation systems.
What fittings do I need for installation?
Required fittings vary by RV model but typically include a drain outlet, vent fitting, inlet connection, and optionally tank level sensors. Browse our RV holding tank fittings collection for compatible accessories.
Why Buy From Elkhart RV Parts?
- Authorized Alpha Dealer: We source directly from manufacturers, guaranteeing authentic OEM-grade parts
- Expert Support: Our team understands RV systems and can help with product selection - use our AI Live Chat for instant assistance
- Quality Guarantee: Every tank is factory tested and backed by manufacturer warranty
- Fast Shipping: Quick processing and reliable delivery to get your RV back on the road
Need help selecting the right holding tank or have questions about compatibility?
Use our AI Live Chat for instant expert assistance with product identification and technical questions.
🔗 Related Products:
Browse our complete selection of RV holding tanks to find the perfect replacement for your recreational vehicle.
| Width (inches) | 33 |
|---|---|
| Height (inches) | 8.375 |
| Length (inches) | 49.5 |
| Capacity (gallons) | 42 |
| Construction material | Rotational Molded Plastic |
- What is the capacity of the alpha holding tank? The Alpha holding tank has a capacity of 42 gallons.
- What are the dimensions of this holding tank? The holding tank measures 49 1/2 inches in length, 33 inches in width, and 8 3/8 inches in height.
- Is this holding tank durable for rv travel? Yes, it features extra durable rotational molded construction designed to withstand the constant movement, vibration, and temperature changes experienced during RV travel.
- Does this tank meet health and safety standards? Yes, the Alpha holding tank is manufactured to strict specifications and meets all necessary health and safety requirements for RV waste management.
- Is this tank compatible with new rv builds? Yes, these are authentic OEM parts and are the same high-quality tanks used in new RV builds by major manufacturers, ensuring perfect compatibility and performance.
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.

