---
✓ ElkhartRVParts.com - The Only Authorized Place for Elkhart RV Parts
✓ 100% Verified Authentic OEM Grade Part
Premium 24 Gallon RV Black Water Holding Tank - Built to Last
This professional-grade 24 gallon RV holding tank (70" x 20" x 6") is engineered for superior durability and long-term performance in motorhomes, travel trailers, and fifth wheels. Featuring a robust 3" outlet and roto-molded construction in durable black polyethylene, this waste water tank is designed to handle the demands of full-time RV living.
Why Choose This RV Holding Tank?
Superior Wall Thickness: While competitor tanks typically feature wall thickness ranging from .125" to .150", our tanks are built with .1875" to .20" walls - up to 60% thicker for enhanced strength and longevity. This means better resistance to cracking, warping, and damage from road vibration and temperature extremes.
Professional-Grade Construction: Roto-molded from high-quality black polyethylene for maximum durability and UV resistance. The seamless construction eliminates weak points and potential leak areas common in welded tanks.
Versatile Waste Management: Designed for storage of solids, wastewater, and gray water. The 3" spigot outlet ensures efficient drainage and easy connection to your RV's waste system.
Technical Specifications
- Capacity: 24 gallons
- Dimensions: 70" L x 20" W x 6" H
- Outlet Size: 3" spigot
- Material: Roto-molded black polyethylene
- Wall Thickness: .1875" to .20" (thicker than industry standard)
- Part Numbers: 4283 / ERV121100 / 1211 (OM)
- Configuration: Blank tank (no pre-installed fittings)
- Weight: 73 lbs
Perfect For These Applications
- Motorhome black water tank replacement
- Travel trailer waste holding tank upgrade
- Fifth wheel holding tank installation
- RV gray water storage solution
- Custom RV plumbing configurations
- Commercial RV fleet maintenance
Custom Fitting Options Available
This tank ships as a blank unit with no pre-installed fittings, giving you complete flexibility for your specific installation requirements. Need custom fittings, sensors, or drain configurations? Our AI Live Chat is available 24/7 to help you design the perfect solution for your RV's unique plumbing layout.
⚠️ IMPORTANT: This is a blank tank with no pre-installed fittings. Fittings can be added per custom quote to match your specific installation needs.
Why Elkhart RV Parts?
We build our tanks to last. With wall thickness up to 60% greater than competitors, superior roto-molded construction, and decades of RV industry experience, you're getting a holding tank that will serve you reliably for years to come. Plus, enjoy free shipping on this item!
Need help with installation or have questions about compatibility? Our AI Live Chat is available 24/7 with deep product knowledge to assist you with sizing, fitment, and technical specifications.
Related Products You May Need
Looking for complete RV tank solutions? Browse our full selection of RV holding tanks, fresh water tanks, and tank accessories.
Order today and get free shipping! This premium 24 gallon RV holding tank is in stock and ready to ship.
| Material | Black polyethylene |
|---|---|
| Width (inches) | 20 |
| Height (inches) | 6 |
| Length (inches) | 70 |
| Capacity (gallons) | 24 |
| Wall thickness (inches) | 0.1875 to 0.20 |
| Outlet diameter (inches) | 3 |
- What are the dimensions of the 24 gallon rv holding tank? The tank measures 70 inches in length, 20 inches in width, and 6 inches in height.
- What material is the rv holding tank made from? The tank is roto-molded from durable black polyethylene.
- Does the tank come with fittings included? No, the tank is sold as a blank tank with no fittings. Fittings can be added separately upon request and quote.
- What is the outlet size of the holding tank? The tank features a 3-inch outlet spigot.
- How thick are the walls of this holding tank compared to competitors? This tank has a wall thickness ranging from 0.1875 to 0.20 inches, which is thicker than competitors’ tanks that range from 0.125 to 0.150 inches.
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.



