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Elkhart Plastics 46 Gallon RV Holding Tank - Premium Black Water Storage Solution
The Elkhart Plastics 46 gallon RV holding tank (EPI 614H / H858003) delivers professional-grade black water storage with proven durability and seamless construction. Measuring 64" x 32" x 9", this blank holding tank provides maximum flexibility for custom fitting configurations while maintaining the structural integrity and quality standards that Elkhart Plastics is known for throughout the RV industry.
Manufactured using advanced rotational molding technology, this 46 gallon waste tank features uniform 0.180" wall thickness in high-density black polyethylene, eliminating weak spots and ensuring consistent performance under the demanding conditions of RV travel and use.
Why Choose This Elkhart Plastics 46 Gallon Holding Tank?
Seamless Roto-Molded Construction: Unlike welded or seamed tanks that can develop leaks over time, this holding tank is manufactured using Elkhart Plastics' proprietary rotational molding process. The result is a one-piece, seamless tank with uniform wall thickness throughout, providing superior strength and leak-proof performance that lasts for years.
Blank Tank Design for Custom Applications: This is a blank tank with no pre-installed fittings, giving you complete control over your plumbing configuration. Whether you need specific drain placement, vent locations, or sensor positioning, this blank holding tank allows professional installers and RV manufacturers to create the exact setup required for each unique application.
Premium Black Polyethylene Material: Manufactured from high-density black polyethylene with fewer impurities than standard tanks, this 46 gallon holding tank resists UV degradation, chemical breakdown, and impact damage. The 0.180" wall thickness provides exceptional durability while maintaining reasonable weight for RV applications.
Proven Elkhart Plastics Quality: With decades of experience manufacturing RV holding tanks for major OEM manufacturers, Elkhart Plastics has earned its reputation for producing tanks that meet rigorous quality and health safety standards. This tank is built to the same specifications used by leading RV manufacturers.
Optimal Capacity and Dimensions: The 46 gallon capacity provides extended holding capability for larger RVs or extended trips, while the 64" x 32" x 9" low-profile dimensions fit common RV underbelly configurations without sacrificing ground clearance.
Technical Specifications
- Capacity: 46 Gallons
- Dimensions: 64" Length x 32" Width x 9" Height
- Part Numbers: EPI 614H, H858003
- Material: High-Density Black Polyethylene
- Wall Thickness: 0.180"
- Construction: Seamless Rotational Molding
- Tank Type: Blank (No Pre-Installed Fittings)
- Application: RV Black Water / Grey Water Holding
- Manufacturer: Elkhart Plastics / Ameri-Kart
- Weight: 112 lbs (shipping weight)
- Color: Black
- Country of Origin: USA
Understanding the Manufacturing Process
Elkhart Plastics uses a specialized rotational molding process that sets their tanks apart from competitors. High-density plastic resin is loaded into a mold, which is then rotated on multiple axes while being heated. This rotation ensures the molten plastic coats every surface evenly, creating walls of consistent thickness with no seams, welds, or weak points.
The sealed hole visible on top of the tank is a normal part of this manufacturing process - it's a venting hole used during tank creation and has been properly sealed. This hole has no functional use for the end-user and does not affect the tank's performance or integrity.
Installation and Customization
As a blank tank, the EPI 614H requires professional installation with custom fitting placement. Common fittings that can be added include:
- 3" or 4" drain outlets (side, center, or end drain configurations)
- 1.5" vent fittings for proper tank ventilation
- Tank level sensors and sensor mounting hardware
- Inspection ports for maintenance access
- Mounting straps and hardware for secure installation
Professional installers can drill and install fittings according to specific RV requirements, ensuring optimal performance and compliance with RV plumbing standards. For fitting recommendations and installation guidance, our AI Live Chat can provide detailed product knowledge and assistance.
Compatible Products & Complete Your Setup
Looking for similar capacity options or complementary parts? We offer a complete range of RV holding tanks and accessories:
- Alpha 18 Gallon RV Holding Tank (46" x 22" x 6") - Compact alternative with center drain
- Alpha 27 Gallon RV Holding Tank (46" x 22" x 8.5") - Mid-size OEM quality option
- Elkhart Plastics 41 Gallon Holding Tank (56" x 34" x 7.125") - Similar capacity, different dimensions
- Replacement Parts & Fittings for RV Holding Tanks - Complete your installation
- Browse All RV Holding Tanks - Explore our complete selection
Compare Similar Capacity Holding Tanks
| Model | Capacity | Dimensions (L×W×H) | Part Number | Best For | View Details |
|---|---|---|---|---|---|
| EPI 614H (Current) | 46 Gallons | 64" × 32" × 9" | 614H / H858003 | Wide, low-profile installations | Current Product |
| EPI H1282 | 34 Gallons | 70.25" × 21.5" × 8" | H1282002 / 3010 | Long, narrow spaces | View Details |
| EPI 2006 | 37 Gallons | 60" × 24" × 8" | H1231002 / 2006 | Balanced dimensions, side drain | View Details |
| EPI 4897 | 33 Gallons | 56" × 36" × 5" | 4897 | Ultra-low profile, wide footprint | View Details |
| EPI 4259 | 35 Gallons | 61.5" × 22" × 9.25" | 4259 | Standard profile, moderate width | View Details |
💡 Helpful Tip: When selecting a holding tank, measure your available space carefully and consider drain placement requirements. The 46 gallon EPI 614H's wide, low-profile design (64" × 32" × 9") is ideal for installations where width is available but height is limited.
Frequently Asked Questions
What is the sealed hole on top of the tank?
The sealed hole on top of the tank is from the rotational molding manufacturing process. It's a venting hole used during tank creation and has been properly sealed by the manufacturer. This hole has no functional use for the end-user and does not affect the tank's performance, integrity, or warranty.
Can I install fittings myself on this blank tank?
While it's possible for experienced DIYers to install fittings, we recommend professional installation to ensure proper placement, sealing, and compliance with RV plumbing standards. Improper fitting installation can lead to leaks or tank damage. Our AI Live Chat can provide guidance on fitting selection and installation best practices.
What's the difference between EPI 614H and H858003?
These are simply different part number designations for the same tank. EPI 614H is the Elkhart Plastics internal part number, while H858003 is an alternate reference number. Both refer to the identical 46 gallon, 64" x 32" x 9" holding tank.
How do I determine what size fittings I need?
Most RV holding tanks use 3" drain outlets for black water tanks, though some applications may require 4" outlets. Vent fittings are typically 1.5". The specific fitting sizes and placements depend on your RV's plumbing system and local codes. For personalized fitting recommendations based on your specific RV model and setup, use our AI Live Chat for expert assistance.
Is this tank suitable for fresh water storage?
No, this tank is manufactured from black polyethylene and is designed specifically for black water (sewage) or grey water (drain water) holding applications. For fresh water storage, you need tanks manufactured from FDA-approved white or natural polyethylene. Browse our complete selection of RV water tanks to find appropriate fresh water storage options.
What is the warranty on this holding tank?
Elkhart Plastics stands behind their manufacturing quality. Warranty coverage varies based on application and installation. Contact us through our AI Live Chat for specific warranty information and to discuss your particular installation requirements.
Applications and Use Cases
This 46 gallon holding tank is ideal for:
- RV black water holding tank replacement for Class A, Class C, and fifth wheel RVs
- Grey water holding tank installations in larger motorhomes and travel trailers
- OEM RV manufacturing and production applications
- Custom RV builds and conversions requiring specific tank dimensions
- RV service centers and repair facilities performing tank replacements
- Fleet maintenance operations for commercial RV applications
Quality You Can Trust
Elkhart Plastics has been manufacturing premium RV holding tanks for decades, supplying major RV manufacturers with tanks that meet or exceed industry standards. When you choose an Elkhart Plastics holding tank, you're getting the same quality and reliability that OEM manufacturers trust for their production lines.
Every tank undergoes rigorous quality control testing to ensure it meets health and safety standards. The seamless construction eliminates the weak points found in welded or multi-piece tanks, while the high-density polyethylene material resists the chemicals, temperature variations, and physical stresses that RV holding tanks encounter during normal use.
Order Your Elkhart Plastics 46 Gallon Holding Tank Today
Whether you're replacing a damaged holding tank, upgrading your RV's waste storage capacity, or building a custom RV, the Elkhart Plastics 46 gallon holding tank (EPI 614H / H858003) delivers the quality, durability, and flexibility you need. With its proven seamless construction, professional-grade materials, and blank tank design for custom fitting placement, this holding tank provides a reliable foundation for your RV's waste management system.
Need help with product selection or have questions about installation? Use our AI Live Chat for deep product knowledge and personalized assistance - our AI can help you identify the right tank for your specific RV model and answer technical questions about fitting requirements, installation procedures, and compatibility.
Ready to Order?
Add this premium Elkhart Plastics 46 gallon holding tank to your cart now and experience the quality difference that comes from decades of RV tank manufacturing expertise. Fast shipping available to get your RV project completed quickly.
| Material | Black polyethylene |
|---|---|
| Width (inches) | 32 |
| Height (inches) | 9 |
| Length (inches) | 64 |
| Weight (pounds) | 35 |
| Capacity (gallons) | 46 |
| Wall thickness (inches) | 0.18 |
- What is the capacity of the elkhart plastics 46 gal. rv holding tank? The holding tank has a capacity of 46 gallons.
- What are the dimensions of this rv holding tank? The tank measures 64 inches in length, 32 inches in width, and 9 inches in height.
- Does the 46 gal. rv holding tank come with fittings installed? No, the tank is blank with no fittings. Fittings can be added separately upon request and quote.
- What material is the holding tank made from? The tank is made from black polyethylene with a wall thickness of 0.180 inches.
- What is the purpose of the sealed hole on top of the tank? The sealed hole is a venting hole used during the manufacturing process and has no functional use for the end-user.
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