{"id":6710,"date":"2025-12-04T11:01:25","date_gmt":"2025-12-04T11:01:25","guid":{"rendered":"https:\/\/www.poolparthub.com\/?post_type=product&#038;p=6710"},"modified":"2026-04-13T18:53:50","modified_gmt":"2026-04-13T18:53:50","slug":"blue-lagoon-o-ring-3-way-connection-nbr-53x45-e801509","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/nl\/product\/blue-lagoon-o-ring-3-way-connection-nbr-53x45-e801509\/","title":{"rendered":"Blue Lagoon O-ring 3-way connection NBR 53&#215;4,5 &#8211; E801509"},"content":{"rendered":"<h2>E801509 \u2013 O-ring for 3-way connection NBR 53 \u00d7 4.5 mm (set of 2)<\/h2>\n<p>Restore a leak-tight seal on Blue Lagoon 3-way unions with this genuine NBR O-ring set. Sized 53 \u00d7 4.5 mm, these rings fit the union seats on Spa UV-C and Copper Electrolyzer housings for clean, pressure-safe installs.<\/p>\n<ul>\n<li>Exact OEM size for Blue Lagoon 3-way unions<\/li>\n<li>Durable NBR rubber for chlorine\/saltwater pools<\/li>\n<li>Supplied as a matched pair for inlet and outlet<\/li>\n<\/ul>\n<h3>Compatibility<\/h3>\n<p>Fits Blue Lagoon 3-way connection sets and housings, including:<\/p>\n<ul>\n<li><strong>B212014<\/strong> (50 mm) and <strong>B212015<\/strong> (48 mm) 3-way connections<\/li>\n<li><strong>B212013<\/strong> Spa UV-C \/ Copper Electrolyzer housing<\/li>\n<li>Spa UV-C PL-S 12\/15 W and Spa T5 21 W (U20\/Z20)<\/li>\n<li>Blue Lagoon Copper Electrolyzer assemblies<\/li>\n<\/ul>\n<h3>What\u2019s included<\/h3>\n<ul>\n<li>2 \u00d7 O-rings NBR 53 \u00d7 4.5 mm (ref. E801509)<\/li>\n<\/ul>\n<h3>Installation tips<\/h3>\n<ul>\n<li>Clean the grooves and mating faces; replace worn nuts and unions if needed.<\/li>\n<li>Lightly lubricate with silicone grease (do not use petroleum products).<\/li>\n<li>Tighten union nuts evenly and leak-test after pressurising.<\/li>\n<\/ul>\n<h3>Specifications<\/h3>\n<ul>\n<li>Reference: <strong>E801509<\/strong><\/li>\n<li>Size: <strong>53 mm<\/strong> ID \u00d7 <strong>4.5 mm<\/strong> cross-section<\/li>\n<li>Material: <strong>NBR<\/strong> (nitrile rubber)<\/li>\n<li>Application: Seals for Blue Lagoon 3-way union connections<\/li>\n<\/ul>\n<h3>Good to know<\/h3>\n<p>Renewing O-rings whenever you service the quartz sleeve or unions prevents weeping and keeps your UV-C or copper system performing at its best. Matching nuts: <strong>3901045<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>E801509 \u2013 O-ring for 3-way connection NBR 53 \u00d7 4.5 mm (set of 2) Restore a leak-tight seal on Blue Lagoon 3-way unions with this genuine NBR O-ring set. Sized 53 \u00d7 4.5 mm, these rings fit the union seats on Spa UV-C and Copper Electrolyzer housings for clean, pressure-safe installs. Exact OEM size for<a href=\"https:\/\/www.poolparthub.com\/nl\/product\/blue-lagoon-o-ring-3-way-connection-nbr-53x45-e801509\/\">Continue reading <span class=\"sr-only\">&#8220;Blue Lagoon O-ring 3-way connection NBR 53&#215;4,5 &#8211; E801509&#8221;<\/span><\/a><\/p>","protected":false},"featured_media":10752,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"bwfblock_default_font":"","inline_featured_image":false},"product_brand":[49],"product_cat":[62],"product_tag":[],"class_list":["post-6710","product","type-product","status-publish","has-post-thumbnail","product_brand-blue-lagoon","product_cat-uv-c","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":"","details_product":null,"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>Blue Lagoon O-ring 3-way connection NBR 53x4,5 - E801509 | PoolPartHub<\/title>\n<meta name=\"description\" content=\"Blue Lagoon E801509 O-ring set (2 pcs), NBR 53\u00d74.5 mm, for Spa UV-C\/Copper Electrolyzer 3-way unions (B212014\/B212015). 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