This configuration features the Pentair Structural 1665<\/b> with the industry-standard 2.5″ top opening<\/b>. It is the go-to choice for installers who want the world-class reliability of a Pentair tank in a slim, space-saving profile that fits standard 2.5″ control heads.<\/p>\n
Here is the rewritten website content for the Pentair 1665 (120L)<\/b> with the 2.5″ Non-Backwash Control Head<\/b>.<\/p>\n
\nPentair Structural 1665 (120L) | 2.5-Inch Standard Top<\/h2>\n
Compact Efficiency for Professional Non-Backwash Filtration<\/h3>\n
Optimize your water treatment footprint with the Pentair 1665 (120L)<\/b> vessel. Paired with our High-Flow Non-Backwash Control Head<\/b>, this system provides a high-capacity filtration solution in a slim 16″ diameter profile.<\/p>\n
Designed for media that operates on an “In-Out” flow path\u2014such as Activated Carbon, Calcite, or Mineral beds<\/b>\u2014this 120-liter setup delivers premium water quality with zero water waste<\/b>, no drain line requirements, and no electrical power needed.<\/p>\n
\n[The Control] 2.5″ High-Flow Non-Backwash Head<\/h3>\n
The simple, robust heart of your filtration system.<\/i><\/p>\n Universal Compatibility:<\/b> Fits the standard 2.5″ NPSM tank opening<\/b>, making installation and future upgrades seamless.<\/p>\n<\/li>\n Integrated Pressure Monitoring:<\/b> Includes two \u00bc\u2033 pre-tapped ports<\/b> for easy gauge installation, allowing you to monitor flow performance and media life at a glance.<\/p>\n<\/li>\n Plumbing Versatility:<\/b> Supports high-flow connections from \u00be\u2033 to 1\u00bd\u2033<\/b>, ensuring your system maintains consistent pressure even during peak demand.<\/p>\n<\/li>\n Eco-Friendly & Maintenance-Free:<\/b> By eliminating the backwash cycle, you save thousands of liters of water annually. With no moving internal parts, it is built for “set-it-and-forget-it” reliability.<\/p>\n<\/li>\n<\/ul>\n The gold standard in composite tank technology.<\/i><\/p>\n Space-Saving 16″ Diameter:<\/b> At 65″ tall, this vessel provides a substantial 120-liter capacity<\/b> while occupying minimal floor space\u2014perfect for tight mechanical rooms.<\/p>\n<\/li>\n Heavy-Duty Construction:<\/b> A seamless, high-density polyethylene (HDPE) inner shell reinforced with professional-grade fiberglass filament winding.<\/p>\n<\/li>\n 100% Corrosion-Proof:<\/span><\/b> Completely resistant to rust and chemical degradation, ensuring decades of service in any environment.<\/span><\/p>\n <\/li>\n NPSM Threaded Opening:<\/b> Precision-engineered 2.5″ threads ensure a perfect, leak-free seal with the control head.<\/p>\n<\/li>\n<\/ul>\n Whole-House Carbon Filtration:<\/span><\/b> Efficiently removes chlorine, tastes, and odors for large families.<\/span><\/p>\n <\/li>\n pH Correction:<\/b> Ideal for Calcite or Magnesite beds to neutralize acidic water.<\/p>\n<\/li>\n Pre-Filtration for RO:<\/span><\/b> Protects sensitive Reverse Osmosis membranes from organic fouling.<\/span><\/p>\n <\/li>\n Remineralization:<\/b> High-volume mineral infusion for pure water systems.<\/p>\n<\/li>\n<\/ul>\n This configuration features the Pentair Structural 1665 with the industry-standard 2.5″ top opening. It is the go-to choice for installers who want the world-class reliability of a Pentair tank in a slim, space-saving profile that fits standard 2.5″ control heads. Here is the rewritten website content for the Pentair 1665 (120L) with the 2.5″ Non-Backwash […]<\/p>\n","protected":false},"featured_media":2442,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[250,251],"product_tag":[276,275,273,274,256,271],"class_list":["post-1314","product","type-product","status-publish","has-post-thumbnail","product_cat-frp-fiberglass-pressure-vessels","product_cat-industrial-frp-vessels","product_tag-16x65inch","product_tag-480x1680-mm","product_tag-4tankmouth","product_tag-50x50cmbase-size","product_tag-frp-vessels","product_tag-industrial-frp-vessels","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/product\/1314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1314"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=\/wp\/v2\/media\/2442"}],"wp:attachment":[{"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1314"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=1314"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=1314"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tqwater.co.za\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=1314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
\n[The Vessel] Pentair Structural 1665 (120L)<\/h3>\n
\n
\nIdeal Applications<\/h3>\n
\n
\nTechnical Specifications<\/h3>\n
\n\n
\n Feature<\/strong><\/td>\n Specification<\/strong><\/td>\n<\/tr>\n<\/thead>\n\n \n Vessel Brand<\/b><\/span><\/td>\n Pentair Structural<\/span><\/td>\n<\/tr>\n \n Model<\/b><\/span><\/td>\n 1665<\/span><\/td>\n<\/tr>\n \n Opening Size<\/b><\/span><\/td>\n 2.5″ NPSM<\/b><\/span><\/td>\n<\/tr>\n \n Nominal Volume<\/b><\/span><\/td>\n 120 Liters<\/span><\/td>\n<\/tr>\n \n Dimensions<\/b><\/span><\/td>\n 16\u2033 Diameter x 65\u2033 Height<\/span><\/td>\n<\/tr>\n \n Max Operating Pressure<\/b><\/span><\/td>\n 150 PSI (10.3 bar)<\/span><\/td>\n<\/tr>\n \n Plumbing Connections<\/b><\/span><\/td>\n \u00be\u2033 \u2013 1\u00bd\u2033<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"