These high-capacity tanks (from 164 L up to 336 L) are built to meet the fuel reserve requirements of larger yachts, cruisers, and other vessels undertaking extended voyages. Constructed from cross-linked polyethylene, they combine fuel resistance with flexibility and lower weight compared to metal tanks of similar volume. Each model is tested and certified (bearing the CE mark and RINA approval) according to ISO 21487, which attests to its reliability under heavy loads and safety in handling a large quantity of gasoline or diesel.
A distinguishing feature of this series is that the tanks come equipped with an adjustable brass pickup mechanism – a floating strainer or swinging arm float that moves with the fuel. This ensures that fuel is drawn efficiently even as the boat moves and down to the last drop of the tank, minimizing the risk of air intake or sediment clogging. The tanks are designed as horizontal modular units – their shape makes it easy to lay them flat on the bilge floor or under decking, and if necessary, multiple tanks can be linked in parallel/series to increase total capacity. The tank bodies include wide filler openings (Ø38 mm or Ø50 mm neck) as well as secure connections for venting and fuel feed. The main outlet is typically Ø1/2" (or 10–12 mm) – sealed with a plug until installation – which allows the high flow needed for powerful engines or generators.
Each tank has a standard 5-hole sender flange installed, of the sealed type (shielded), compatible with popular VDO gauge systems. This means you can easily mount an electric sender (10-180 Ω or 240-33 Ω, among others) to monitor the fuel level and relay information to a helm gauge. Of course, a mechanical gauge could also be used if preferred. The large tanks have robust thick walls and additional reinforcement that prevent deformation despite the significant weight of the fuel; many include built-in anti-explosion baffles to enhance safety and limit fuel sloshing.
- 164 L tank: The smallest in this range, still with relatively manageable dimensions. Suitable for mid-size yachts (~8–9 m) or as an auxiliary (supplemental) tank for long-distance cruising. It can also be used as a dedicated stationary tank for powering onboard generators or heating systems separate from the main engine.
- 200–250 L tanks: This range provides a substantial quantity of fuel, enough for large cruising boats and power cruisers (10+ m) with one or two engines. For example, a ~220 L tank would offer a comfortable reserve for multi-day cruising on a motor yacht. The shape of these tanks is flat and broad, which helps them sit stably near the bottom of the vessel, improving the center of gravity when installed.
- 300–336 L tanks: The maximum capacities in the series, intended for long-range yachts, commercial vessels, or catamarans where an extended range without refueling is critical. Over 300 liters of fuel allow for covering very large distances (e.g., trans-oceanic legs on a motorboat) or full-day operation of high-powered engines at speed. These tanks are modular – they can be installed singly or in pairs (for instance, two x 300 L to divide fuel between two hulls or engine bays). Despite the impressive volume, their material and design provide safety: polyethylene does not create sparks, and the shielded pickup floats plus anti-explosion baffles minimize risks in case of impact or fire.



