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Alpha 37 Gallon RV Holding Tank - 231BLANK
Upgrade your RV's waste management system with the Alpha 231BLANK, a premium 37-gallon holding tank engineered to meet or exceed OEM standards. This rotational molded tank features seamless one-piece construction, superior durability, and leak-tested reliability. With compact dimensions of 54" x 17" x 11", this tank delivers excellent waste capacity while fitting tight RV compartments with limited width.
Why Choose the Alpha 231BLANK Holding Tank?
Compact Width Design for Tight Spaces
With a narrow 17-inch width, the 231BLANK is ideal for RVs with limited lateral space while still providing 37 gallons of waste capacity. The taller 11-inch height maximizes volume without requiring extra width.
Rotational Molded One-Piece Construction
Engineered without seams, joints, or weak points, this rotational molded tank delivers superior strength and leak-proof reliability that withstands the rigors of RV travel, movement, vibration, and temperature changes.
OEM Quality Standards
Built to original equipment manufacturer specifications, the 231BLANK meets strict health and safety standards and is individually leak-tested to ensure long-lasting performance. These are the same authentic OEM parts used in new RV builds.
Proven Reliability for Full-Time RVers
With a 4.8-star rating from 12 customer reviews, full-time RVers praise the 231BLANK for its durability, quality construction, and leak-free performance during extended stays.
Technical Specifications
- Part Number: 231BLANK
- Capacity: 37 gallons
- Dimensions: 54" Length x 17" Width x 11" Height
- Material: Rotational molded polyethylene
- Construction: Seamless one-piece design
- Tank Type: Holding tank (black water)
- SKU: 231BLANK
- Manufacturer: Alpha Systems
- Quality: OEM Grade, individually leak-tested
- Customer Rating: 4.8/5 stars (12 reviews)
Compare Alpha Holding Tanks - Find Your Perfect Size
Not sure if the 231BLANK is the right fit? Compare it with other Alpha holding tanks in the 30-40 gallon range to find the perfect match for your RV's waste management needs and space constraints.
| Model | Capacity | Dimensions (L x W x H) | Best For | View Details |
|---|---|---|---|---|
| 231BLANK | 37 gallons | 54" x 17" x 11" | Current Product - Compact width design | You're here! |
| VB22548H | 30 gallons | 54" x 21.5" x 8" | Lower profile, wider | View → |
| VB32547HBLANK | 39 gallons | 54" x 32" x 7" | Center drain, wider | View → |
| VB24637HL | 40 gallons | 63" x 25" x 7" | Longest tank, low profile | View → |
Tip: The 231BLANK's narrow 17-inch width makes it perfect for RVs with tight lateral space constraints. If you have more width available, consider the VB32547HBLANK for slightly more capacity with a lower profile.
What's Included
- One (1) Alpha 231BLANK 37 Gallon Holding Tank
- OEM Grade Quality Certification
- Individual Leak Test Verification
- Manufacturer Documentation
Frequently Asked Questions
Will this tank fit my RV?
The 231BLANK is designed as a replacement for many OEM holding tanks with similar dimensions. Measure your existing tank compartment (54" x 17" x 11") and verify drain location before ordering to ensure proper fitment. The narrow 17-inch width is ideal for tight spaces.
What's the difference between black water and gray water tanks?
While the 231BLANK is designed primarily for black water (toilet waste), Alpha holding tanks can be used for either black or gray water (sink/shower drainage). The tank construction is identical - the designation depends on how it's plumbed in your RV system.
How long will this tank last?
With proper care and maintenance, Alpha holding tanks are built to last for many years, often outlasting the RV itself. The seamless rotational molded construction eliminates common failure points found in welded or multi-piece tanks.
Is this tank leak-tested?
Yes, every Alpha 231BLANK tank is individually submerged and leak-tested at the factory to ensure quality and reliability before shipping.
Can I install this tank myself?
While experienced RVers can install holding tanks, we recommend professional installation to ensure proper mounting, plumbing connections, and vent configuration for optimal performance and safety.
Why do customers rate this tank so highly?
With a 4.8-star rating from 12 reviews, customers praise the 231BLANK for its durable construction, leak-free performance, and reliability during extended RV trips. Full-time RVers especially appreciate its quality and longevity.
Why Buy from Elkhart RV Parts?
- 100% Authentic OEM Parts
- Fast Shipping
- 30-Day Return Policy
- Authorized Alpha Dealer
- Expert Customer Support
Questions? Use our AI Live Chat for expert guidance!
| QAI Certification | REC 559-1 |
|---|---|
| Part number | 231BLANK |
| Capacity (gallons) | 37 |
| Dimensions (inches) | 54 x 17 x 11 |
| Lead time | |
| Best for | Compact RV waste management solutions |
- What is the capacity of the alpha holding tank? The Alpha holding tank has a capacity of 37 gallons.
- What are the dimensions of this holding tank? The holding tank measures 54 inches in length, 17 inches in width, and 11 inches in height.
- Is the alpha holding tank durable for rv travel? Yes, the tank is made with extra durable rotational molded construction designed to withstand the constant movement, vibration, and temperature changes experienced during RV travel.
- Does this holding tank meet health and safety standards? Yes, it is manufactured to strict specifications ensuring it meets all necessary health and safety requirements for RV waste management.
- Are these holding tanks tested for leaks? Yes, every tank is individually submerged and tested for leaks before shipping to guarantee a reliable, 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.