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Tank lids and extensions

Tank lids and extensions - safety and functionality

Tank lids and extensions are indispensable accessories that increase user convenience and ensure the protection of stored rainwater or wastewater. They ensure that tanks are tightly protected, easy to handle and tailored to the individual needs of users - whether in domestic or industrial installations.

The range includes:

  • Tank lids - robust, pressure- and weather-resistant, providing a secure seal.
  • Tank extensions - extensions to adjust the height of the tank to ground level.
  • Telescopic and adjustable lids - allow precise positioning in relation to the ground surface.
  • Installation accessories - gaskets, rings, fasteners to increase the durability of the installation.

We offer covers designed for various conditions:

  • covers for green areas - lightweight and discreet, ideal for gardens,
  • covers for pedestrian traffic - pressure resistant, suitable for paths and pavements,
  • covers forvehicular traffic - reinforced, suitable for areas where there is car or truck traffic.

The range also includes telescopic and adjustable extensions, which allow the height of the tank to be precisely matched to ground level, as well as mounting accessories to increase the tightness and stability of the installation.

Thanks to the variety of solutions, these products are suitable for both domestic rainwater management systems and professional installations. By choosing covers and extensions, you are investing in the convenience of operation, the safety of users and the longevity of the entire installation. With a wide range of products to choose from, you'll find the right solution for every system, whether it's a domestic or commercial installation.


Choose a cover or extension perfectly suited to your tank and enjoy the full functionality of your system!

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Cover Topcover black
  • -5%
Green Black

Cover Topcover

  • Suitable for all Rewatec tanks and Octagon tanks
  • Black and green colours
  • Designed for pedestrian traffic
  • Max. continuous load 150 kg
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Price
508.25 PLN Regular price 535.00 PLN
413.21 PLN tax excl
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Steel cover
  • -5%

Steel cover

  • Suitable for car traffic up to 3.5 t
  • Fits Rewatec and Octagon tanks
  • Made of stainless steel
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Price
1,735.65 PLN Regular price 1,827.00 PLN
1,411.10 PLN tax excl
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Distance ring 60 cm
  • -5%

Distance ring 60 cm

  • Suitable for tanks from Rewatec and Octagon
  • Height 60 cm, diameter DN 600
  • Made from high quality polyethylene
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Price
677.35 PLN Regular price 713.00 PLN
550.69 PLN tax excl
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Gasket DN 600 for manhole
  • -5%

Gasket DN 600 for manhole

  • Seal for Rewatec tanks
  • Protects the inside of the tank against pollution
  • The seal between the riser tube and the distance ring
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Price
149.15 PLN Regular price 157.00 PLN
121.26 PLN tax excl
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Elevating element set 75 cm
  • -5%

Extension element set

  • Including TopCover cover, VS20 ascending pipe, 60 cm spacer ring and DN600 seals
  • For Rewatec and Octagon tanks
  • Made from polyethylene
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Price
1,764.15 PLN Regular price 1,857.00 PLN
1,434.27 PLN tax excl
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Rewatec car traffic set
  • -5%

Rewatec car traffic set

  • Suitable for Rewatec tanks: BlueLine II, F-Line, Neo.
  • Compatible with Octagon tank
  • Height 60 cm
  • Max. 2.2 t axle load
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Price
2,556.45 PLN Regular price 2,691.00 PLN
2,078.41 PLN tax excl
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PIERŚCIEŃ DYSTANSOWY
  • -5%

PIERŚCIEŃ DYSTANSOWY

  • Pasuje do zbiorników Rewatec
  • Wysokość 60cm
  • Wykonany z wysokiej jakości polietylenu
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Price
895.85 PLN Regular price 943.00 PLN
728.33 PLN tax excl
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JUMBOTANK LID

Jumbotank 10 cover

  • Diameter 760 mm
  • Designed for Jumbotank
  • Manhole cover
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Price
251.00 PLN
204.07 PLN tax excl
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Septic tank cover

OG cover

  • Diameter 640 mm
  • Fixing with screws or bolts
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Price
153.00 PLN
124.39 PLN tax excl
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Cover SR

Cover SR

  • Cover made of polyethylene
  • Mounted with screws or bolts
  • Diameter 300 mm
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Price
49.00 PLN
39.84 PLN tax excl
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BOLT COVER

Bolt cover

  • Diameter 500 mm
  • Inspection hatch
  • Designed for Bolt tanks
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Price
126.00 PLN
102.44 PLN tax excl
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Jumbotank rain cover

Jumbotank rain cover

  • Polyethylene cover
  • Diameter 760mm
  • Compatible with Jumbotank
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Price
614.00 PLN
499.19 PLN tax excl
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DropWater rain cover

DropWater rain cover

  • Diameter 640mm
  • Compatible with DropWater tanks
  • Polyethylene cover
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Price
434.00 PLN
352.85 PLN tax excl
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Mini Bolt rain cover

Mini Bolt rain cover

  • Diameter 300mm
  • Polyethylene cover
  • Compatible with the Bolt 1000 tank
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Price
231.00 PLN
187.80 PLN tax excl
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Bolt rain cover

Bolt rain cover

  • Diameter 500mm
  • Compatible with Bolt tanks 2500 - 7000 l
  • Polyethylene cover
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Price
375.00 PLN
304.88 PLN tax excl
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Jumbo M extension

Jumbo M extension

  • Extensions an inspection hatch
  • Designed for JumboTank 
  • Height 70 cm
0 Review(s) 
Price
159.00 PLN
129.27 PLN tax excl
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Jumbo D extension

Jumbo D extension

  • Extensions an inspection hatch
  • Designed for Jumbotank tanks
  • Height 56 cm
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Price
409.00 PLN
332.52 PLN tax excl
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Superstructure OG 20 cm

OG superstructure

  • Superstructure septic tank ECO and WATER
  • Designed for EKO STANDAR, EKO TUNEL and WATER treatment plants
  • Height 20 or 35 cm
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Price
228.78 PLN
186.00 PLN tax excl
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Showing 1 - 24 of 38 item(s)
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The tank lids and extensions available in our range are designed to be fully compatible with different types of installations. Made from durable materials such as polyethylene, composites or cast iron, they ensure tightness, pressure resistance and a long service life. The extensions make it easy to adjust the height of the tank to ground level, which significantly increases the comfort of using and servicing the system.

The products available in the Aquatechnika shop fit tanks of such makes and models as:

  • Rewatec, Blue Line, F Line, Neo, Octagon
  • Marseplast, Eko Roto, Bolt , Drop Water, Jumbotank, Eko Tunnel,Eko Standard, Apollo.
  • Eco line, Eco line SlimTank
  • Tango, Bolt, Ecoleader, Gama Plastic
  • Euro plast,
  • Graf,

Thanks to this wide compatibility, covers and extensions are used in:

  • rainwater tanks, retention basins, complete systems
  • domestic sewage treatment plants,
  • industrial and municipal tanks,
  • drainage and retention systems, water meter sumps, sewage sumps, pumping stations.

Aquatechnika supplies its products throughout Poland, serving individual and business customers in major cities: Warsaw, Kraków, Wrocław, Gdańsk, Poznań, Łódź, Szczecin, Bydgoszcz, Lublin, Białystok, Katowice, Rzeszów, Toruń, Olsztyn, Kielce, Zielona Góra, Opole or Gorzów Wielkopolski. We also fulfil foreign orders - to Germany, the Czech Republic, Slovakia, Lithuania or Ukraine.

Choose a cover or extension compatible with your tank and ensure the safety and convenience of the entire system!

FAQ - questions and answers

How do I choose a cover for my tank?

The choice of cover depends on the diameter of the tank, its purpose and where it is installed. For the garden, lightweight lids for the green area are sufficient, while stronger models are necessary in areas exposed to foot or vehicle traffic. It is also important to match the cover to the make and model of the tank.
Tags: cover selection, tank covers, cover compatibility
0

For which brands of tanks do the lids and extensions fit?

In our range you will find covers and extensions compatible with many tank brands, including Rewatec, Graf, Marseplast, Ekoroto, Ecoline, Tango, Bolt, Drop Water, Europlast, Jumbotank, Blue Line, F Line, Neo, Octagon, Eko Tunnel, Eko Standard and Apollo. This makes it easy to match the product to your system.
0

What are the types of cover by load?

The covers are divided into three main groups: for green areas (the lightest, aesthetically pleasing), for pedestrian traffic (pressure-resistant and stable) and for vehicular traffic (reinforced, designed for cars and trucks). The selection depends on the place of installation.
0

What is the difference between an extension and a telescopic extension?

An extension piece is a tank extension piece whose main function is to match the height of the tank to ground level. It comes in fixed height versions and is mostly used for standard installations. The telescopic extension, on the other hand, has an adjustable design - it can be extended or retracted, allowing precise positioning in relation to the surface. This makes it suitable for more difficult installation situations, such as on uneven ground or when rearranging the property.
0

What is the cover with the intake?

An intake cover is a special type of cover for a reservoir which, in addition to its safety function, also allows easy use of the stored water. It is equipped with an integrated draw-off point, e.g. a spigot, valve or garden hose connection. As a result, there is no need to open the tank every time - water can be conveniently drawn directly from the cover. This solution is particularly practical for rainwater management systems, where quick access to water is important, e.g. for watering the garden.
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