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The ICON 37.5 gallon RV holding tank is built for RV waste-tank replacement applications that need a verified capacity, correct footprint, and durable OEM-grade construction. ICON holding tanks are a go-to choice when you need to replace a damaged or leaking RV waste tank without guessing on fit.
This OEM-grade replacement tank gives you a durable option when you need to replace a cracked, leaking, or worn RV waste tank with the correct capacity and footprint. Replace a leaky or damaged tank with a durable ICON tank or upgrade your holding tanks capacity with an ICON tank designed to fit your RV.
Features & Specifications
- Tank model: HT339-ED
- Capacity: 37.5 gallons
- Dimensions: 51.5" x 24.75" x 10"
- Use: Can be used for black water, gray water, or combo waste applications where the tank layout matches.
- Construction: Built with thick rotationally molded material for long-term RV use.
- Fittings: Review the product image to confirm installed spigots, sensors, and fitting locations before ordering.
- Certification: ICON states these holding tanks are certified to IAPMO and CSA standards.
Why Choose This ICON Holding Tank?
The ICON 37.5 gallon RV holding tank helps restore dependable waste-water capacity without gambling on a universal-fit tank. Buyers typically choose this tank when they need the exact ICON model, the right gallon range, and a footprint that matches an existing RV holding tank bay.
Because holding tanks vary by drain orientation, sensor placement, and installed fittings, this product works best for buyers who confirm the image, measurements, and part reference before purchase. That makes it easier to avoid rework during installation.
Compare Holding Tanks
Not sure which ICON RV holding tank is right for your setup? Here is a quick side-by-side look at this tank and nearby capacity options.
| Model | Capacity | Dimensions | Best For | View Details |
|---|---|---|---|---|
| ICON 37.5 Gallon Holding Tank HT339-ED - HT339-ED | 37.5 gal | 51.5" x 24.75" x 10" | Best when you need this exact footprint or replacement reference. | Current Product |
| ICON 39 Gallon Holding Tank HT192B-ED - HT192B-ED | 39 gal | 70" x 24" x 8" | Compare size, orientation, and fitting layout for a close holding tank alternative. | View Details |
| ICON 36 Gallon Holding Tank HT330-RE - HT330-RE | 36 gal | 58" x 26.25" x 10" | Compare size, orientation, and fitting layout for a close holding tank alternative. | View Details |
| ICON 43 Gallon Holding Tank HT176B-ED - 2007856 | 43 gal | 58" x 28" x 8.5" | Compare size, orientation, and fitting layout for a close holding tank alternative. | View Details |
Tip: Choose the holding tank that matches your current dimensions and fitting layout first, then use gallon capacity as a secondary filter.
Technical Specifications
- Brand: ICON
- Product type: RV Holding Tank
- Model: HT339-ED
- Part reference: HT339-ED
- Capacity: 37.5 gallons
- Overall dimensions: 51.5" x 24.75" x 10"
- Application: Replacement RV black-water tank, gray-water tank, or combo waste tank where verified by size and layout.
What's Included
- ICON holding tank
- Any spigots, sensors, or installed fittings shown in the product images
- No additional hardware or plumbing adapters unless explicitly shown or stated by ICON
Compatible Models & Alternatives
Verify your existing tank dimensions, drain orientation, and fitting locations before ordering. If you are comparing nearby capacities, the products below can help you narrow the right tank size for your RV:
- ICON - Holding Tank, HT192B-ED, 70x24x8, 39 Gallons
- ICON - Holding Tank, HT330-RE, 58x26.25x10, 36 Gallons
- ICON - Holding Tank, HT176B-ED, 58x28x8.5, 43 Gallons, 2007856
Frequently Asked Questions
Can this ICON holding tank be used for black or gray water?
ICON states these tanks can be used for black water, gray water, or a combination of both when the tank design matches your RV application.
How do I know if this is the right replacement tank?
Match the model number, gallon capacity, dimensions, and fitting layout to your current tank. Product images matter because fitting locations can vary.
Are sensors and the drain already installed?
Some ICON holding tanks include installed sensors or a drain spigot. Review the image and product notes for this exact listing before ordering.
Can I use this tank as a universal upgrade?
Not safely by guesswork. Even if capacity is close, you still need the right dimensions and plumbing layout for your RV.
What if I am between two tank sizes?
Use the comparison table to review nearby capacities, then choose the tank that best matches your existing footprint and fitting placement.
Why Buy from Elkhart RV Parts?
Elkhart RV Parts focuses on real replacement parts and verified product data so you can buy with more confidence. We prioritize exact part identification, useful comparison content, and live product pages built around real RV repair needs.
Use AI Live Chat to compare dimensions, model numbers, and nearby ICON tank options before you order.
| QAI Certification | REC 559-1 |
|---|---|
| Part number | HT339-ED |
| Capacity (gallons) | 37 |
| Dimensions (inches) | 51.5x24.75x10 |
| Lead time | |
| Best for | RV owners needing durable holding tank |
- What are the dimensions of the icon ht339-ed holding tank? The dimensions of the ICON HT339-ED holding tank are 51.5 inches by 24.75 inches by 10 inches.
- What is the capacity of this holding tank? This holding tank has a capacity of 37.5 gallons.
- Can this tank be used for both black and gray water? Yes, the ICON holding tank can be used for black water, gray water, or a combination of both.
- Does the icon ht339-ed come with preinstalled fittings? Yes, most ICON tanks, including this model, come with preinstalled drain and level sensors.
- Is this holding tank durable and built to last? Yes, the ICON holding tank is made with a thicker amount of material for a stronger build, ensuring durability and long-lasting performance.
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