{"id":10074,"date":"2026-03-19T16:39:09","date_gmt":"2026-03-19T14:39:09","guid":{"rendered":"https:\/\/vestelli-fi.kehityspalvelin.fi\/tuote\/closed-tank-extra-low-iisi-6100-package\/"},"modified":"2026-07-08T16:07:52","modified_gmt":"2026-07-08T13:07:52","slug":"closed-tank-extra-low-iisi-6100-package","status":"publish","type":"product","link":"https:\/\/vestelli-fi.kehityspalvelin.fi\/en\/tuote\/closed-tank-extra-low-iisi-6100-package\/","title":{"rendered":"Closed tank extra low IISI 6100 package"},"content":{"rendered":"

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Price from \u20ac<\/strong><\/span><\/h4>\n

The height from the bottom of the tank to the drain outlet is only 100 cm. <\/strong>You can also order this tank with a connection height of 78 cm, which gives a volume of 5000L.<\/strong><\/span><\/p>\n

The extra-low IISI \u2013 Closed tank is suitable as a receiving tank for the drainage of toilet water in a detached house or summer cottage. The extra-low structure offers many advantages both in installation and in terms of long-term durability. <\/span><\/p>\n

The properties of the ultra-low IISI \u2013 Closed Tank are in a class of their own and their strength properties are still 100% present, even when the durability limits of a conventional closed tank have already been reached.<\/span><\/p>\n

    \n
  • 200%* )<\/sup> higher permissible groundwater level in the soil<\/span><\/li>\n
  • 50%* )<\/sup> lower installation trench requirement below the inlet drain<\/span><\/li>\n
  • 25%* )<\/sup> higher permitted soil filling on top of the tank<\/span><\/li>\n
  • large service pipes 450 and 800 mm<\/span><\/li>\n
  • ultra-low and strength-optimized design<\/span><\/li>\n
  • made from the best raw materials without sparing them<\/span><\/li>\n
  • environmentally friendly 100% recyclable raw material is also food grade<\/span><\/li>\n<\/ul>\n

    *) compared to standard 5000-5500 liter closed tanks on the market<\/em><\/span><\/p>\n

    You can recognize a good and durable closed container by<\/span><\/p>\n

      \n
    • the lower the overall structure of the closed tank, the better<\/span><\/li>\n
    • The closer the permitted groundwater level is to the sewer pipe connection, the better.<\/span><\/li>\n
    • the more fill soil allowed on top of the tank, the better<\/span><\/li>\n
    • the bigger the service pipe, the better<\/span><\/li>\n
    • It is good if there are no separate support structures inside the closed container.<\/span><\/li>\n<\/ul>\n

      In comparisons, the extra-low IISI Closed Tank meets all of the above-mentioned characteristics, which shows that the IISI closed tank is designed correctly to withstand various stress factors, the best available raw materials are used in its manufacture without sparing it, and its installation is easier. <\/span><\/p>\n

      The IISI 6100L closed tank can be connected in series to achieve a larger volume.<\/span><\/p>\n","protected":false},"featured_media":10076,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[137],"product_tag":[],"class_list":["post-10074","product","type-product","status-publish","has-post-thumbnail","product_cat-septic-tanks","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nClosed tank extra low IISI 6100 package | Vestelli.fi<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Closed tank extra low IISI 6100 package | Vestelli.fi\" \/>\n<meta property=\"og:description\" content=\"Price from \u20ac The height from the bottom of the tank to the drain outlet is only 100 cm. You can also order this tank with a connection height of 78 cm, which gives a volume of 5000L. The extra-low IISI \u2013 Closed tank is suitable as a receiving tank for the drainage of toilet water in a detached house or summer cottage. The extra-low structure offers many advantages both in installation and in terms of long-term durability. The properties of the ultra-low IISI \u2013 Closed Tank are in a class of their own and their strength properties are still 100% present, even when the durability limits of a conventional closed tank have already been reached. 200%* ) higher permissible groundwater level in the soil 50%* ) lower installation trench requirement below the inlet drain 25%* ) higher permitted soil filling on top of the tank large service pipes 450 and 800 mm ultra-low and strength-optimized design made from the best raw materials without sparing them environmentally friendly 100% recyclable raw material is also food grade *) compared to standard 5000-5500 liter closed tanks on the market You can recognize a good and durable closed container by the lower the overall structure of the closed tank, the better The closer the permitted groundwater level is to the sewer pipe connection, the better. the more fill soil allowed on top of the tank, the better the bigger the service pipe, the better It is good if there are no separate support structures inside the closed container. In comparisons, the extra-low IISI Closed Tank meets all of the above-mentioned characteristics, which shows that the IISI closed tank is designed correctly to withstand various stress factors, the best available raw materials are used in its manufacture without sparing it, and its installation is easier. The IISI 6100L closed tank can be connected in series to achieve a larger volume.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vestelli-fi.kehityspalvelin.fi\/en\/tuote\/closed-tank-extra-low-iisi-6100-package\/\" \/>\n<meta property=\"og:site_name\" content=\"Vestelli.fi\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-08T13:07:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vestelli-fi.kehityspalvelin.fi\/wp-content\/uploads\/2026\/03\/Toimituspaketti-Umpisailio-IISI-erikoismatala-6100L-450.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1400\" \/>\n\t<meta property=\"og:image:height\" content=\"1400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" 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You can also order this tank with a connection height of 78 cm, which gives a volume of 5000L. The extra-low IISI \u2013 Closed tank is suitable as a receiving tank for the drainage of toilet water in a detached house or summer cottage. The extra-low structure offers many advantages both in installation and in terms of long-term durability. The properties of the ultra-low IISI \u2013 Closed Tank are in a class of their own and their strength properties are still 100% present, even when the durability limits of a conventional closed tank have already been reached. 200%* ) higher permissible groundwater level in the soil 50%* ) lower installation trench requirement below the inlet drain 25%* ) higher permitted soil filling on top of the tank large service pipes 450 and 800 mm ultra-low and strength-optimized design made from the best raw materials without sparing them environmentally friendly 100% recyclable raw material is also food grade *) compared to standard 5000-5500 liter closed tanks on the market You can recognize a good and durable closed container by the lower the overall structure of the closed tank, the better The closer the permitted groundwater level is to the sewer pipe connection, the better. the more fill soil allowed on top of the tank, the better the bigger the service pipe, the better It is good if there are no separate support structures inside the closed container. In comparisons, the extra-low IISI Closed Tank meets all of the above-mentioned characteristics, which shows that the IISI closed tank is designed correctly to withstand various stress factors, the best available raw materials are used in its manufacture without sparing it, and its installation is easier. 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