---
✓ ElkhartRVParts.com - The Only Authorized Place for Elkhart RV Parts
✓ 100% Verified Authentic OEM Grade Part
Premium 42 Gallon RV Fresh Water Tank - Built for Reliability
Finding a reliable fresh water tank that won't leak, crack, or contaminate your drinking water is critical for any RV owner. This 42-gallon RV fresh water tank (model T169) delivers professional-grade performance with FDA-approved polyethylene construction, NSF certification for safe drinking water, and a seamless, leak-proof design that outperforms many factory-installed tanks. Sized at 39" x 18" x 14", it's engineered for motorhomes, travel trailers, horse trailers, and marine applications where durability and water safety are non-negotiable.
Features & Specifications
- 42-Gallon Capacity: Ample fresh water storage for extended trips without frequent refills
- FDA-Approved Polyethylene: Food-grade material ensures safe, clean drinking water with no chemical leaching
- NSF Certified: Meets strict NSF standards for potable water storage and safety
- Seamless Leak-Proof Construction: Rotomolded design eliminates weak points and prevents leaks, cracks, and failures
- Corrosion & Rust Resistant: Won't stain, corrode, or degrade like metal tanks, ensuring long-term reliability
- Pre-Installed Fittings: Includes 1.25-inch water fill inlet and three 3/8-inch NPT connections for easy installation
- Compact Dimensions: 39" L x 18" W x 14" H fits standard RV compartments and tight spaces
Why Choose the 42 Gallon T169 Fresh Water Tank?
When you're on the road, the last thing you need is a fresh water tank failure. This 42-gallon RV fresh water tank is built with professional-grade materials that resist the common problems plaguing cheaper tanks: cracking from temperature changes, leaking at seams, and contamination from inferior plastics. The seamless rotomolded construction creates a single-piece tank with no weak points, while the FDA-approved polyethylene ensures your drinking water stays clean and safe. NSF certification provides additional peace of mind that this tank meets the highest standards for potable water storage. Whether you're replacing a failed factory tank or upgrading to a more durable solution, the T169 delivers the reliability and longevity you need for worry-free RV adventures.
Compare 42 Gallon RV Fresh Water Tanks
Not sure which 42-gallon fresh water tank is right for your RV? Compare the T169 with other popular models to find the perfect fit for your space and plumbing configuration.
| Model | Dimensions | Capacity | Best For | View Details |
|---|---|---|---|---|
|
Elkhart T169 Current Product |
39" x 18" x 14" | 42 Gallons | Standard RV compartments, balanced dimensions | You're Here |
| Alpha 388BLANK | 39" x 18" x 14" | 40 Gallons | Identical footprint, slightly less capacity | View Tank → |
| Alpha VR234210WBLANK | 42" x 23.5" x 10" | 40 Gallons | Low-profile design for under-floor installations | View Tank → |
| Elkhart Plastics W1609 | 39" x 16.625" x 16" | 40 Gallons | Narrower width, taller profile for tight spaces | View Tank → |
💡 Pro Tip: Always measure your RV's tank compartment before ordering. While capacity is important, the physical dimensions must fit your available space. The T169's balanced 39" x 18" x 14" dimensions make it one of the most versatile options for standard RV installations.
Technical Specifications
- Part Number: T169
- Capacity: 42 Gallons
- Dimensions: 39" L x 18" W x 14" H
- Material: FDA-Approved Polyethylene
- Certification: NSF Approved for Potable Water
- Construction: Seamless Rotomolded Design
- Water Fill Inlet: 1.25-inch
- Outlet Connections: Three 3/8-inch NPT fittings
- Weight: Approximately 65 lbs (empty)
- Color: Natural/White
- Applications: RVs, Motorhomes, Travel Trailers, Horse Trailers, Marine
- Temperature Range: Suitable for standard RV operating conditions
What's Included
- One (1) 42-Gallon Fresh Water Tank - Model T169
- Pre-installed 1.25-inch water fill inlet
- Three (3) pre-installed 3/8-inch NPT outlet connections
- Manufacturer's warranty against defects in materials and workmanship
- Installation instructions and fitting specifications
Compatible Models & Alternatives
This 42-gallon fresh water tank is compatible with most RVs, motorhomes, and travel trailers that have a tank compartment measuring at least 39" x 18" x 14". If you need a different size or configuration, explore our complete selection of 40-gallon RV fresh water tanks to find the perfect fit for your space. For installation, you may also need NPT replacement fittings to connect your tank to your RV's plumbing system.
Frequently Asked Questions
How do I install a 42-gallon RV fresh water tank?
Installation typically involves positioning the tank in your RV's designated compartment, securing it with mounting straps or brackets, and connecting the water fill inlet and outlet fittings to your existing plumbing. The T169 includes pre-installed 1.25-inch fill inlet and three 3/8-inch NPT connections for straightforward installation. Always ensure proper ventilation and secure mounting to prevent movement during travel.
Is this fresh water tank safe for drinking water?
Yes, this tank is made from FDA-approved polyethylene and is NSF certified for potable water storage. The material is specifically designed for safe drinking water and won't leach chemicals or contaminants into your water supply.
What's the difference between this tank and my factory-installed tank?
This aftermarket tank often exceeds factory specifications with thicker walls, seamless construction, and higher-grade materials. Many factory tanks use thinner plastics that are more prone to cracking, leaking, and degradation over time. The T169's rotomolded design and FDA-approved materials provide superior durability and longevity.
Will this 42-gallon tank fit my RV?
The T169 measures 39" x 18" x 14", which fits most standard RV fresh water tank compartments. However, you should always measure your available space before ordering. If these dimensions don't work, we offer multiple 40-42 gallon tanks in different configurations to fit various RV layouts.
How much does a 42-gallon fresh water tank weigh when full?
The tank itself weighs approximately 65 lbs empty. When filled with 42 gallons of water (approximately 350 lbs), the total weight is around 415 lbs. Ensure your RV's tank compartment and mounting system can support this weight.
Can I use this tank for hot water storage?
No, this tank is designed specifically for fresh (cold) water storage. Hot water requires a different type of tank with appropriate insulation and pressure ratings. Use this tank only for cold fresh water storage.
Why Buy from Elkhart RV Parts?
At Elkhart RV Parts, we specialize in premium OEM-grade RV components backed by our commitment to quality and customer satisfaction. Every fresh water tank we sell is verified authentic, FDA-approved, and NSF certified to ensure you're getting a safe, reliable product. We offer same-day shipping on in-stock items, expert customer support from RV specialists, and a hassle-free return policy. When you buy from us, you're getting more than just a part - you're getting peace of mind that your RV's water system is built with the best components available.
🚀 Ready to Upgrade Your RV's Fresh Water System?
Add this 42-gallon fresh water tank to your cart now and enjoy same-day shipping. Have questions about compatibility or installation? Our AI Live Chat is available 24/7 to help you find the perfect tank for your RV.
| Material | Polyethylene |
|---|---|
| Fda approved | Yes |
| Nsf approved | Yes |
| Width (inches) | 18 |
| Height (inches) | 14 |
| Length (inches) | 39 |
| Weight (pounds) | 24 |
| Capacity (gallons) | 42 |
| Resistance features | Stain, Corrosion, Rust |
| Seamless construction | Yes |
| Wall thickness (inches) | 0.125 |
| Water connection size (inches) | 0.375 |
| Water fill inlet size (inches) | 1.25 |
- What material is the 42 gallon rv fresh water tank made from? The tank is made from high-quality, durable FDA-approved polyethylene material.
- What are the dimensions of this fresh water tank? The tank dimensions are 39 inches in length, 18 inches in width, and 14 inches in height.
- Is the water tank resistant to rust and corrosion? Yes, the tank is stain, corrosion, and rust resistant, designed to stay clean and functional after years of use.
- How many inlets and connections does the tank have? The tank comes with one 1.25-inch water fill inlet and three 3/8-inch NPT connections.
- Can this water tank be used for marine applications? Yes, this tank is versatile and ideal for RVs, horse trailers, and marine vessels.
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.