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✓ 100% Verified Authentic OEM Grade Part
Alpha 40 Gallon RV Fresh Water Tank - 388BLANK
The Alpha 388BLANK is a premium 40-gallon fresh water tank engineered specifically for RVs, travel trailers, and motorhomes. Manufactured by Alpha Systems, the industry leader in RV water storage solutions, this tank delivers the perfect balance of capacity, compact dimensions, and FDA-approved safety for your potable water needs.
Why Choose the Alpha 388BLANK Fresh Water Tank?
When you need reliable, safe water storage for your RV adventures, the Alpha 388BLANK stands out as the professional's choice. This isn't just a water tank - it's a precision-engineered component that RV manufacturers trust for factory installations.
Key Features & Benefits
- FDA-Approved Food-Grade Polyethylene: Ensures your drinking water remains pure, safe, and free from contamination - certified for potable water storage
- Seamless One-Piece Construction: Eliminates weak points and potential leak areas that plague welded or multi-piece tanks - engineered for decades of reliable service
- Optimal 40-Gallon Capacity: Provides ample water for extended trips without adding excessive weight to your RV - the sweet spot for most travel trailers and motorhomes
- Space-Efficient Dimensions (39" x 18" x 14"): Compact footprint fits in tight RV compartments where larger tanks won't - maximizes your valuable storage space
- UV-Resistant Material: Prevents degradation from sun exposure and maintains structural integrity over years of use
- Vibration-Resistant Design: Handles the constant movement and road vibration of RV travel without cracking or developing stress fractures
Technical Specifications
| Capacity | 40 Gallons (151 Liters) |
| Dimensions | 39" L x 18" W x 14" H |
| Weight (Empty) | 59.2 lbs |
| Material | FDA-Approved Food-Grade Polyethylene |
| Construction | Seamless One-Piece Design |
| Part Number | 388BLANK |
| Manufacturer | Alpha Systems |
| Certification | FDA-Approved for Potable Water |
Perfect Applications
- Travel Trailers: Ideal replacement or upgrade tank for most travel trailer models
- Fifth Wheels: Compact dimensions fit fifth wheel fresh water compartments
- Class A, B & C Motorhomes: OEM-quality replacement for motorhome water systems
- Marine Applications: Suitable for boat fresh water storage systems
- Off-Grid Living: Perfect for tiny homes, cabins, and off-grid water storage
- Emergency Preparedness: Reliable backup water storage for emergency situations
Compare Alpha Fresh Water Tank Options
| Model | Capacity | Dimensions (L×W×H) | Part Number | Best For | View Details |
|---|---|---|---|---|---|
| Alpha 35 Gallon | 35 Gallons | 28" × 20" × 19" | 198BLANK | Compact spaces, smaller RVs | View Details |
| Alpha 38 Gallon | 38 Gallons | 55" × 24" × 7" | VR24557WBLANK | Low-profile installations | View Details |
| Alpha 40 Gallon ⭐ | 40 Gallons | 39" × 18" × 14" | 388BLANK | Most travel trailers & motorhomes | Current Product |
| Alpha 42 Gallon | 42 Gallons | 48" × 24" × 12" | 502BLANK | Extended capacity needs | View Details |
| Alpha 47 Gallon | 47 Gallons | 60" × 34" × 7" | VR34606WBLANK | Large RVs, extended trips | View Details |
💡 Choosing Tip: The 40-gallon capacity offers the best balance of water storage and weight for most RV applications. If you need a low-profile tank for tight vertical spaces, consider the 38-gallon model. For extended boondocking, the 47-gallon option provides maximum capacity.
Installation & Compatibility
The Alpha 388BLANK is designed as a direct replacement for many OEM fresh water tanks in RVs and travel trailers. The compact 39" × 18" × 14" dimensions make it versatile for various installation locations. Always verify your available space and mounting configuration before ordering.
✓ Installation Considerations:
- Measure your existing tank compartment carefully
- Ensure adequate clearance for fittings and connections
- Verify mounting bracket compatibility
- Consider access for future maintenance
- Professional installation recommended for optimal performance
Why Alpha Systems?
Alpha Systems has been the trusted name in RV water storage for decades. Their tanks are specified by major RV manufacturers for factory installations, which speaks volumes about their quality and reliability. When you choose an Alpha tank, you're choosing the same OEM-grade quality that goes into new RVs.
Frequently Asked Questions
Is this tank safe for drinking water?
Yes, the Alpha 388BLANK is manufactured from FDA-approved food-grade polyethylene specifically certified for potable water storage. Your drinking water will remain pure and safe.
Will this tank fit my RV?
The 388BLANK measures 39" × 18" × 14" and is designed to fit most standard RV fresh water compartments. Always measure your available space before ordering to ensure proper fit.
How long will this tank last?
With proper installation and maintenance, Alpha tanks are engineered to last for decades. The seamless construction and UV-resistant materials ensure long-term durability even in harsh RV environments.
What's the difference between this and cheaper tanks?
Alpha tanks feature seamless one-piece construction (no weak seams to leak), FDA-approved materials (safe for drinking water), and UV-resistant polyethylene (won't degrade in sunlight). Cheaper tanks often use inferior materials and welded construction that fails prematurely.
Can I install this myself?
While experienced RV owners can install this tank, we recommend professional installation to ensure proper mounting, secure fittings, and optimal performance. Improper installation can lead to leaks or tank damage.
Get Expert Help
Have questions about compatibility, installation, or which Alpha tank is right for your RV? Our AI Live Chat has deep product knowledge and can help you find the perfect solution for your specific needs.
Order Your Alpha 388BLANK Today
Upgrade to the professional-grade fresh water storage that RV manufacturers trust. The Alpha 388BLANK delivers FDA-approved safety, seamless reliability, and the perfect 40-gallon capacity for your RV adventures.
| Product type | Fresh Water Tank |
|---|
- What is the capacity of the alpha fresh water tank? The Alpha fresh water tank has a capacity of 40 gallons.
- What are the dimensions of this 40-gallon fresh water tank? The tank measures 39 inches in length, 18 inches in width, and 14 inches in height.
- Is this fresh water tank safe for storing drinking water? Yes, it is made from premium FDA-approved polyethylene material, making it safe for storing drinking water.
- How is the construction of the alpha fresh water tank designed for durability? The tank features seamless one-piece construction without seams or joints, which provides superior strength and leak-proof reliability.
- Can this fresh water tank be used for rvs, horse trailers, and marine vessels? Yes, it is designed to be versatile and compatible with RVs, horse trailers, and marine vessels as a long-lasting water storage solution.
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.