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Alpha 12 Gallon RV Holding Tank - 261BLANK
Upgrade your RV's waste management system with the Alpha 261BLANK, a premium 12-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 ultra-compact dimensions of 20.75" x 16" x 9", this tank delivers excellent waste capacity for the smallest RVs, pop-up campers, and compact travel trailers while fitting the tightest compartments.
Why Choose the Alpha 261BLANK Holding Tank?
Perfect 5-Star Customer Rating
With a perfect 5.0-star rating from 3 customer reviews, the 261BLANK is trusted by RVers for its exceptional quality, perfect fitment in compact spaces, and reliable leak-free performance.
Ultra-Compact Size for Smallest RVs
With ultra-compact dimensions under 21 inches in all directions, the 261BLANK is ideal for the smallest pop-up campers, compact travel trailers, and micro RVs where every inch of space matters. Despite its tiny footprint, it still provides 12 gallons of waste capacity.
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 261BLANK meets strict health and safety standards and is individually leak-tested to ensure long-lasting performance.
Technical Specifications
- Part Number: 261BLANK
- Capacity: 12 gallons
- Dimensions: 20.75" Length x 16" Width x 9" Height
- Material: Rotational molded polyethylene
- Construction: Seamless one-piece design
- Tank Type: Holding tank (black water)
- SKU: 261BLANK
- Manufacturer: Alpha Systems
- Quality: OEM Grade, individually leak-tested
- Customer Rating: 5.0/5 stars (3 reviews)
Compare Alpha Holding Tanks - Find Your Perfect Size
Not sure if the 261BLANK is the right fit? Compare it with other Alpha compact holding tanks in the 6-13 gallon range to find the perfect match for your small RV or camper.
| Model | Capacity | Dimensions (L x W x H) | Best For | View Details |
|---|---|---|---|---|
| 261BLANK | 12 gallons | 20.75" x 16" x 9" | Current Product - Ultra-compact | You're here! |
| 932BLANK | 13 gallons | 20.875" x 15.875" x 9.875" | Slightly more capacity | View → |
| 211BLANK | 6 gallons | 28" x 17.5" x 6.625" | Smaller capacity, lower profile | View → |
Tip: The 261BLANK's ultra-compact dimensions make it perfect for the smallest pop-up campers and micro RVs. If you need slightly more capacity, consider the 932BLANK at 13 gallons.
What's Included
- One (1) Alpha 261BLANK 12 Gallon Holding Tank
- OEM Grade Quality Certification
- Individual Leak Test Verification
- Manufacturer Documentation
Frequently Asked Questions
Will this tank fit my pop-up camper or micro RV?
The 261BLANK is designed specifically for the smallest RVs, pop-up campers, and micro travel trailers. Measure your existing tank compartment (20.75" x 16" x 9") and verify drain location before ordering to ensure proper fitment.
Is 12 gallons enough capacity?
For pop-up campers and micro RVs with 1-2 occupants on weekend trips, 12 gallons provides adequate capacity. For longer trips or more occupants, you may need to dump more frequently or consider a larger tank if space allows.
Why does this tank have a perfect 5-star rating?
Customers consistently praise the 261BLANK for its exceptional quality, perfect fitment in ultra-compact spaces, leak-free performance, and long-lasting durability. The OEM-grade construction and rigorous leak testing ensure reliable performance.
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 261BLANK tank is individually 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 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!
| Width (inches) | 16 |
|---|---|
| Height (inches) | 9 |
| Length (inches) | 20.75 |
| Capacity (gallons) | 12 |
| Construction material | Rotational Molded Plastic |
- What is the capacity of the alpha holding tank? The Alpha Holding Tank has a capacity of 12 gallons.
- What are the dimensions of this holding tank? The dimensions of the tank are 20 3/4 inches in length, 16 inches in width, and 9 inches in height.
- Is this holding tank durable for rv travel? Yes, it is made with extra durable rotational molded construction designed to withstand movement, vibration, and temperature changes experienced during RV travel.
- Does this tank meet health and safety standards? Yes, the tank is manufactured to strict specifications and meets all necessary health and safety requirements for RV waste management.
- Is this holding tank compatible with new rv builds? Yes, these are authentic OEM parts 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.

