Water tanks
Store freshwater safely and efficiently on board with our marine water tanks from Plastimo and Nuova Rade. Designed for easy installation and long-term durability, these tanks are ideal for use with your boat’s freshwater system.
Our range includes flexible and rigid tanks in various sizes and shapes, suitable for freshwater, grey water, or waste applications. Made from non-toxic, odour-free materials, they ensure clean water storage even in warm marine conditions.
With options for horizontal or vertical mounting, our Plastimo and Nuova Rade tanks are a reliable choice for boats, yachts, and motorhomes, combining space-saving design, strength, and hygiene for peace of mind at sea.
Deck filler stainless steel waste water ⌀ 38 mm angle 45°Special Price €103.91 Regular Price €115.46
White cockpit drain ⌀ 70mm hullSpecial Price €46.84 Regular Price €49.30
Plastic vent oval ⌀ 17-19mm white straight hoseSpecial Price €894.35 Regular Price €941.42
Plastic vent round ⌀ 16-19mmSpecial Price €57.38 Regular Price €60.40
Plastic vent oval ⌀ 17-19mm chromed hoseSpecial Price €77.13 Regular Price €81.19
Plastic vents metal finish oval ⌀ 16-19mmSpecial Price €48.40 Regular Price €50.95
Plastic vent round ⌀ 17-19mm white straight hoseSpecial Price €65.85 Regular Price €69.32
Plastic vent round ⌀ 16-19mm whiteSpecial Price €61.35 Regular Price €64.58
Plastic vent round ⌀ 17-19mm chromed straight hoseSpecial Price €76.64 Regular Price €80.67
Plastic vent round ⌀ 17-19mm chromed 90° hoseSpecial Price €76.64 Regular Price €80.67
Straight chromed brass vent€18.96
Jerrycan with spout 10L€17.23
Chromed brass single water cap ⌀ 40mmSpecial Price €52.05 Regular Price €54.80
Metal vents elbow stainless steel aisi 316Special Price €51.62 Regular Price €54.33
Chromed deck filler fuel brass ⌀ 38mm angle 30°Special Price €86.93 Regular Price €94.49
Flexible watertank spare inner bladder square 200L for watertank 70956Special Price €96.92 Regular Price €105.35
What are water tanks used for?
Water tanks are used to store liquids on board, such as freshwater for daily use and wastewater from toilets, sinks and showers. They are an essential part of onboard water and sanitation systems.
- Freshwater tanks store clean water used for drinking, cooking, washing and showering.
- Wastewater tanks (grey water or black water tanks) collect used water and waste before it is pumped out or discharged according to regulations.
Each tank type is designed specifically for its contents and intended use.
What types of water tanks are available?
There are two main types of marine water tanks:
Rigid water tanks
- Made from materials such as plastic or stainless steel
- Fixed shape and volume
- Durable and easy to clean
- Suitable for boats with dedicated tank space
Flexible water tanks
- Made from reinforced, flexible materials
- Conform to available space
- Lightweight and easy to install
- Ideal when space is limited or irregular
The choice depends on available space, capacity needs and installation preferences.
What accessories are used with water tanks?
Seashop also offers a wide range of water tank accessories, including:
- Deck fillers for filling the tank from the outside
- Tank vents to prevent pressure build-up
- Water level sensors for monitoring tank contents
- Tank spare parts such as inspection covers, fittings and connectors
These components help ensure safe operation and easy maintenance.