✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
Description
High-Capacity 40.3 Gallon Composite Pressure Tank for Efficient Water Systems
The WellMate WM-12 Composite Pressure Tank (40.3 Gallon) is built for reliable performance in residential, light commercial, and pressure boosting applications. Featuring corrosion-proof composite construction, this tank eliminates rust concerns and delivers long-term durability in demanding water system environments.
With a 12.5 gallon drawdown, the WM-12 significantly reduces pump cycling, improving system efficiency and extending pump life. Its tall, space-efficient design (16" diameter x 57" height) allows for increased capacity without requiring additional floor space.
Weighing just 35.05 lbs, the WM-12 is considerably lighter than comparable steel tanks, enabling faster installation—often by a single technician—reducing labor costs and installation time.
Designed for flexibility, the WM Series supports a wide pressure setting differential, making it adaptable across a variety of system configurations.
Key Features
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40.3 gallon capacity (WM-12 model)
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12.5 gallon drawdown reduces pump cycling and increases efficiency
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Corrosion-proof composite construction – no rust or internal degradation
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Lightweight design (35.05 lbs) for easier installation
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Space-efficient footprint – 16" diameter x 57" height
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125 PSI maximum operating pressure
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1" male NPT connection for standard compatibility
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Ideal for residential wells, cottages, and pressure boosting systems
Specifications – WM-12 Model
| Attribute | Value |
|---|---|
| Model | WM-12 |
| Capacity | 40.3 Gallons |
| Maximum Pressure | 125 PSI |
| Drawdown | 12.5 Gallons (47.3 L) |
| Diameter | 16" (41 cm) |
| Height | 57" (145 cm) |
| Inlet/Outlet Height | 1-3/4" (4.4 cm) |
| Connection | 1" Male NPT |
| Weight | 35.05 lbs (15.9 kg) |
Frequently Asked Questions (FAQs)
What applications is the WM-12 best suited for?
The WM-12 is ideal for larger residential systems, cottages, and light commercial or booster applications requiring higher water demand.
What does the 12.5 gallon drawdown provide?
It allows for more usable water between pump cycles, reducing wear on the pump and improving system efficiency.
How does this compare to steel tanks?
Composite tanks are corrosion-resistant, lighter, and longer-lasting, with lower maintenance requirements.
Is installation difficult?
No. At just 35 lbs, it is lightweight and typically allows for single-person installation.
What are the dimensions of this tank?
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Diameter: 16 inches
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Height: 57 inches
What connection size does it use?
It features a 1" male NPT connection, compatible with most standard systems.
What is the maximum operating pressure?
The WM-12 is rated for up to 125 PSI.
Will this tank corrode over time?
No. The composite construction eliminates corrosion, making it ideal for long-term use.
Manuals & Documentation
✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
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