{"id":10503,"date":"2026-03-19T16:40:51","date_gmt":"2026-03-19T14:40:51","guid":{"rendered":"https:\/\/vestelli-fi.kehityspalvelin.fi\/tuote\/greywater-filter-iisi-h4-2\/"},"modified":"2026-07-08T16:11:25","modified_gmt":"2026-07-08T13:11:25","slug":"greywater-filter-iisi-h4-2","status":"publish","type":"product","link":"https:\/\/vestelli-fi.kehityspalvelin.fi\/en\/tuote\/greywater-filter-iisi-h4-2\/","title":{"rendered":"Greywater filter IISI H4"},"content":{"rendered":"<p><span style=\"color: #333333;\">Features:<\/span><\/p>\n<ul>\n<li><span style=\"color: #333333;\">capacity 500 L of washing water \/ day<\/span><\/li>\n<li><span style=\"color: #333333;\">continuous biological process \u2013 water flows by gravity<\/span><\/li>\n<li><span style=\"color: #333333;\">effective cleaning \u2013 large surface area for biological microbial activity<\/span><\/li>\n<li><span style=\"color: #333333;\">efficient filtration \u2013 good cleaning results<\/span><\/li>\n<li><span style=\"color: #333333;\">effective separation ability \u2013 separates fats and solids<\/span><\/li>\n<li><span style=\"color: #333333;\">made of high-quality polyethylene plastic \u2013 lightweight and easy to handle<\/span><\/li>\n<li><span style=\"color: #333333;\">very durable \u2013 no corrosion<\/span><\/li>\n<li><span style=\"color: #333333;\">self-anchoring structure \u2013 easy to install<\/span><\/li>\n<li><span style=\"color: #333333;\">water can be led from the treatment plant directly into a ditch, rock pit or nature \u2013 no filtration field is needed<\/span><\/li>\n<li><span style=\"color: #333333;\">The difference between the inlet and outlet is only 35cm.<\/span><\/li>\n<li><span style=\"color: #333333;\">does not need electricity<\/span><\/li>\n<li><span style=\"color: #333333;\">no chemicals<\/span><\/li>\n<li><span style=\"color: #333333;\">no peat to replace, etc.<\/span><\/li>\n<li><span style=\"color: #333333;\">no replaceable pumps<\/span><\/li>\n<li><span style=\"color: #333333;\">no filter field<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<h4 data-fontsize=\"18\" data-lineheight=\"27\"><span style=\"color: #333333;\"><strong>Price from \u20ac<\/strong><\/span><\/h4>\n<p><span style=\"color: #333333;\">The IISI H4 greywater filter effectively cleans 500 L of washing water per day. It is suitable for cleaning washing water in a well-equipped holiday home. <\/span><\/p>\n<p><span style=\"color: #333333;\">The cleaning is done biologically and the water flows through the filter by gravity. No need for a filtration field, no chemicals, no electricity, no replaceable components, no peat etc. replacement. The filter inside the greywater filter does not need to be replaced but is cleaned and washed as needed, typically approx. 1-2 times a year. Easy and hassle-free greywater cleaning.     <\/span><\/p>\n<p><span style=\"color: #333333;\">Suitable for:<\/span><\/p>\n<ul>\n<li><span style=\"color: #333333;\">for holiday homes with dishwasher and\/or shower, sink<\/span><\/li>\n<li><span style=\"color: #333333;\">also well suited for coastal areas and areas with stricter cleaning requirements<\/span><\/li>\n<li><span style=\"color: #333333;\">for holiday homes for continuous and periodic use<\/span><\/li>\n<li><span style=\"color: #333333;\">can be installed on all plots and soil<\/span><\/li>\n<\/ul>\n","protected":false},"featured_media":10148,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[142],"product_tag":[],"class_list":["post-10503","product","type-product","status-publish","has-post-thumbnail","product_cat-greywater-treatment-for-cottages","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Greywater filter IISI H4 | 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=\"Greywater filter IISI H4 | Vestelli.fi\" \/>\n<meta property=\"og:description\" content=\"Price from \u20ac The IISI H4 greywater filter effectively cleans 500 L of washing water per day. It is suitable for cleaning washing water in a well-equipped holiday home. The cleaning is done biologically and the water flows through the filter by gravity. No need for a filtration field, no chemicals, no electricity, no replaceable components, no peat etc. replacement. The filter inside the greywater filter does not need to be replaced but is cleaned and washed as needed, typically approx. 1-2 times a year. Easy and hassle-free greywater cleaning.   Suitable for: for holiday homes with dishwasher and\/or shower, sink also well suited for coastal areas and areas with stricter cleaning requirements for holiday homes for continuous and periodic use can be installed on all plots and soil\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vestelli-fi.kehityspalvelin.fi\/en\/tuote\/greywater-filter-iisi-h4-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Vestelli.fi\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-08T13:11:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vestelli-fi.kehityspalvelin.fi\/wp-content\/uploads\/2026\/03\/3626004-Harmaavesisuodatin-IISI-H4-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"1600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta 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