---
Need a 40 gallon fresh water tank with a narrow width profile? The Elkhart Plastics 40 Gallon RV Fresh Water Tank EPI 1562W delivers substantial capacity in a space-efficient 39" x 16" x 16" configuration. With its narrow 16" width and FDA-approved polyethylene construction, this tank fits perfectly in tight side compartments and narrow chassis applications where wider tanks won't work.
Features & Specifications
- 40 Gallon Capacity - Ample fresh water storage for extended trips and off-grid adventures
- Narrow Width Design: 39" L x 16" W x 16" H - Perfect for tight side compartments and narrow spaces
- FDA-Approved Polyethylene - Food-grade material safe for potable drinking water with no chemical leaching
- Seamless One-Piece Construction - Rotomolded design eliminates weak joints and potential leak points
- Heavy-Duty Walls: 0.180" thickness - Superior durability and puncture resistance
- UV & Chemical Resistant - Durable material withstands harsh outdoor environments and temperature extremes
- Stain & Corrosion Resistant - Non-reactive polyethylene won't rust, corrode, or harbor bacteria
- Blank Tank Design - Custom fitting placement allows precise configuration for your specific plumbing needs
Why Choose the Elkhart Plastics 40 Gallon EPI 1562W?
Many RV chassis have narrow side compartments where standard-width tanks simply won't fit. The EPI 1562W solves this problem with its slim 16" width that slides into tight spaces while still delivering 40 gallons of capacity. The seamless rotomolded construction creates a single-piece tank with uniform 0.180" wall thickness and no weak seams where cracks typically develop. FDA-approved virgin polyethylene ensures your drinking water stays safe and clean, while the stain-resistant material prevents discoloration and bacterial growth. Whether you're replacing a damaged tank or upgrading to larger capacity in a narrow compartment, the EPI 1562W delivers professional-grade performance backed by Elkhart Plastics' reputation for quality.
Compare 40 Gallon RV Fresh Water Tanks
Not sure which 40 gallon fresh water tank is right for your RV? Compare the EPI 1562W with similar capacity options to find the perfect fit for your specific space constraints.
| Model | Capacity | Dimensions | Best For | View Details |
|---|---|---|---|---|
| Elkhart EPI 1562W | 40 Gallons | 39" x 16" x 16" | Narrow width, tight side compartments | Current Product |
| Elkhart EPI 1458 | 40 Gallons | 31" x 25" x 14" | Wider footprint, compact length, similar height | View Tank → |
| Alpha 388BLANK | 40 Gallons | 39" x 18" x 14" | Same length, slightly wider, shorter height | View Tank → |
| Elkhart EPI 3029 | 40 Gallons | 57" x 29.75" x 5.75" | Ultra-low profile, extra-long chassis applications | View Tank → |
Pro Tip: The 16" width makes this tank ideal for narrow side compartments and tight chassis configurations where every inch of width matters. Measure your available space carefully before ordering.
Technical Specifications
- Capacity: 40 Gallons (151.4 Liters)
- Length: 39 inches
- Width: 16 inches (narrow profile)
- Height: 16 inches
- Material: FDA-approved virgin polyethylene (food-grade)
- Construction: Seamless one-piece rotational molding
- Wall Thickness: 0.180 inches (heavy-duty construction)
- Application: Fresh water / potable water storage only
- Certifications: FDA-approved for drinking water contact
- Color: Natural/translucent polyethylene
- Part Numbers: EPI 1562W, W1609, 1562
- Vendor: Elkhart Plastics/Ameri-Kart (Myers supplier)
What's Included
- 40 Gallon RV Fresh Water Tank (EPI 1562W)
- Blank tank design allows custom fitting placement
- FDA-approved material certification
- Manufacturer warranty coverage
Note: This is a blank tank without pre-installed fittings. You can position fill connections, drain outlets, and vent fittings exactly where your RV requires them. Fittings sold separately.
Compatible Models & Alternatives
The EPI 1562W's narrow 16" width makes it ideal for tight side compartments, narrow chassis configurations, and horse trailers where width is the limiting factor. If you need a different capacity or footprint, explore our complete selection of RV fresh water tanks or browse all Elkhart Plastics products. For custom installations, consider our range of tank fittings and accessories to complete your setup.
Frequently Asked Questions
Will this tank fit in my narrow side compartment?
The 16" width makes this tank ideal for narrow spaces where wider tanks won't fit. Measure your available clearance carefully - you need at least 39" length x 16" width x 16" height. The narrow profile is specifically designed for tight side compartments.
Is this tank safe for drinking water?
Yes, this tank is manufactured from FDA-approved virgin polyethylene that's specifically certified for potable water contact. The material is food-grade and will not leach chemicals into your drinking water supply.
What fittings do I need to install this tank?
This is a blank tank without pre-installed fittings. Common requirements include a fill connection, drain outlet, vent fitting, and mounting hardware. Browse our tank fittings collection for compatible options.
How does this compare to the Alpha 388BLANK?
Both tanks are 40 gallons with similar 39" length, but the EPI 1562W is narrower (16" vs 18") and taller (16" vs 14"). Choose the EPI 1562W if width is your limiting factor, or the Alpha if you have more width but less height clearance.
Can this tank be used in a horse trailer?
Absolutely! The narrow design and FDA-approved construction make it perfect for horse trailers, livestock trailers, and other mobile applications where you need safe drinking water storage in a narrow compartment.
What's the wall thickness on this tank?
Elkhart Plastics uses a standard 0.180" wall thickness across their tank line, providing excellent durability and puncture resistance while maintaining flexibility for thermal expansion and contraction.
Why Buy from Elkhart RV Parts?
As an authorized Elkhart Plastics dealer, we guarantee 100% authentic OEM-grade parts backed by manufacturer warranties. Our team specializes in RV plumbing components and can help you select the right tank, fittings, and accessories for your specific application. Every Elkhart Plastics tank we sell is FDA-approved for potable water and built to rigorous quality standards that ensure safe, reliable performance for years to come.
Need Help Finding the Right Narrow-Width Tank?
Our AI Live Chat can help you find the perfect fresh water tank for your specific space constraints and capacity requirements. Get instant answers about dimensions, compatibility, and installation.
| Material | High-quality durable polyethylene |
|---|---|
| Width (inches) | 16.625 |
| Height (inches) | 16 |
| Length (inches) | 39 |
| Capacity (gallons) | 40 |
| Wall thickness (inches) | 0.18 |
- What is the capacity of this rv water tank? The RV water tank has a capacity of 40 gallons.
- Is this water tank made from food-safe material? Yes, the tank is made from premium FDA-approved polyethylene material, safe for storing drinking water.
- Does the tank come with fittings installed? No, this is a blank tank with no fittings. Fittings can be added separately upon request or quote.
- What are the dimensions of this 40 gallon rv water tank? The tank measures 39 inches in length, 16.625 inches in width, and 16 inches in height.
- Is this water tank durable and resistant to leaks? Yes, the tank features seamless one-piece roto-molded construction for superior strength and leak-proof reliability, making it durable and long-lasting.
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.




