{"id":14973,"date":"2026-06-07T07:50:11","date_gmt":"2026-06-07T07:50:11","guid":{"rendered":"https:\/\/www.poolparthub.com\/product\/fluidra-diffuser-support-tube-o140-mm-for-praga-filter-o1800\/"},"modified":"2026-06-07T11:07:59","modified_gmt":"2026-06-07T11:07:59","slug":"fluidra-diffuser-support-tube-o140-mm-for-praga-filter-o1800","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/nl\/product\/fluidra-diffuser-support-tube-o140-mm-for-praga-filter-o1800\/","title":{"rendered":"Fluidra &#8211; Diffuser Support Tube \u00d8140 mm for Praga Filter \u00d81800"},"content":{"rendered":"<h2>Fluidra &#8211; Diffuser Support Tube \u00d8140 mm for Praga Filter \u00d81800<\/h2>\n<p>This is the genuine Fluidra diffuser support tube (\u00d8140 mm) designed for the AstralPool Praga commercial sand filter with an \u00d81800 mm tank diameter. It forms part of the internal diffuser and manifold assembly, holding the diffuser plate correctly centred so that incoming water is distributed evenly across the full filter bed for consistent, efficient filtration.<\/p>\n<h3>Compatibility<\/h3>\n<p>This part is specifically sized for the \u00d81800 mm variant of the Fluidra AstralPool Praga bobbin-wound fibreglass sand filter range. The Praga series spans tank diameters from \u00d81050 mm up to \u00d82000 mm, so always verify your tank diameter and manifold configuration (\u00d8140 arm size) before ordering, as support tubes are not interchangeable across different diameter configurations.<\/p>\n<h3>Why Genuine Matters<\/h3>\n<p>Fluidra OEM components are manufactured to exact tolerances, ensuring a precise fit within the filter vessel and compatibility with the existing collector arm assembly. A correctly seated diffuser support tube prevents water from bypassing the sand bed, maintaining filtration efficiency and protecting your pump from unfiltered debris. Third-party alternatives may differ in length or diameter, leading to poor water distribution or premature failure.<\/p>\n<h3>Installation<\/h3>\n<p>Installation requires draining the filter tank and accessing the internal manifold assembly. The support tube locates between the diffuser plate and the central collector, and should be inspected for cracks or deformation whenever the filter is opened for media replacement. For large commercial Praga installations, professional servicing is recommended to ensure correct reassembly of the full diffuser and collector system.<\/p>","protected":false},"excerpt":{"rendered":"<p>Fluidra &#8211; Diffuser Support Tube \u00d8140 mm for Praga Filter \u00d81800 This is the genuine Fluidra diffuser support tube (\u00d8140 mm) designed for the AstralPool Praga commercial sand filter with an \u00d81800 mm tank diameter. It forms part of the internal diffuser and manifold assembly, holding the diffuser plate correctly centred so that incoming water<a href=\"https:\/\/www.poolparthub.com\/nl\/product\/fluidra-diffuser-support-tube-o140-mm-for-praga-filter-o1800\/\">Continue reading <span class=\"sr-only\">&#8220;Fluidra &#8211; Diffuser Support Tube \u00d8140 mm for Praga Filter \u00d81800&#8221;<\/span><\/a><\/p>","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"bwfblock_default_font":"","inline_featured_image":false},"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":["post-14973","product","type-product","status-publish","product_cat-uncategorized","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":{"pph_product_template":"spare_part","pph_extra_parts_check":"","pph_spare_parts":null,"pph_extra_spare_parts":null,"extra_product_tabs":null,"main_product_link":null,"restock_info":"","exploded_view_link":"https:\/\/spareparts.fluidra.com\/en\/exploded-view.php?ownercode=21506","details_product":[{"text_details_type":"yes","text_details_product":"Genuine Fluidra OEM part \u2014 guaranteed fit"},{"text_details_type":"yes","text_details_product":"Ensures even water distribution across the filter bed"},{"text_details_type":"yes","text_details_product":"Prevents sand bypass and protects downstream equipment"},{"text_details_type":"yes","text_details_product":"Durable construction suited to commercial filter pressures"},{"text_details_type":"yes","text_details_product":"Direct replacement \u2014 no modification required"},{"text_details_type":"no","text_details_product":"Compatible with \u00d81800 mm Praga tanks only \u2014 verify size first"},{"text_details_type":"no","text_details_product":"Internal filter access required \u2014 professional installation recommended"}],"details_product_exploded":null,"pph_card_badge_use_custom":false,"pph_card_badge_text":"","pph_card_badge_background_color":"#ADC2F7","pph_card_badge_border_color":"#ADC2F7","pph_card_badge_text_color":"#2B46AB"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.4 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Fluidra - Diffuser Support Tube \u00d8140 mm for Praga Filter \u00d81800 | PoolPartHub<\/title>\n<meta name=\"description\" content=\"Genuine Fluidra diffuser support tube \u00d8140 mm for Praga sand filter \u00d81800. OEM part 21506R0423. Order from poolparthub.com.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.poolparthub.com\/nl\/product\/fluidra-diffuser-support-tube-o140-mm-for-praga-filter-o1800\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fluidra - Diffuser Support Tube \u00d8140 mm for Praga Filter \u00d81800\" \/>\n<meta property=\"og:description\" content=\"Genuine Fluidra diffuser support tube \u00d8140 mm for Praga sand filter \u00d81800. OEM part 21506R0423. 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