{"id":23268,"date":"2026-08-25T06:26:25","date_gmt":"2026-08-25T06:26:25","guid":{"rendered":"https:\/\/www.poolparthub.com\/?post_type=product&p=23268"},"modified":"2026-09-21T13:39:42","modified_gmt":"2026-09-21T13:39:42","slug":"sta-rite-diffuser-o-ring-5p4r-dyna-glass-sw5p4r-ru9374","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/ro\/product\/sta-rite-diffuser-o-ring-5p4r-dyna-glass-sw5p4r-ru9374\/","title":{"rendered":"Inelul O pentru difuzor Sta-Rite \u2014 5P4R, DYNA-GLASS, SW5P4R (RU9374)"},"content":{"rendered":"

Diffuser o-ring for the Sta-Rite 5P4R, DYNA-GLASS, SW5P4R pool pumps. Small, cheap part; disproportionately large impact on pump performance \u2014 a hardened diffuser o-ring shows up as a stubborn slow-prime issue that looks like a bad mechanical seal or an air leak on the suction line.<\/p>\n

Replace every time the diffuser is removed for any reason, and always as part of a routine seal service. Lubricate lightly with silicone grease before installation \u2014 never petroleum grease, which will swell the elastomer and cause a leak within weeks.<\/p>","protected":false},"excerpt":{"rendered":"

Diffuser o-ring for the Sta-Rite 5P4R, DYNA-GLASS, SW5P4R pool pumps. Small, cheap part; disproportionately large impact on pump performance \u2014 a hardened diffuser o-ring shows up as a stubborn slow-prime issue that looks like a bad mechanical seal or an air leak on the suction line. Replace every time the diffuser is removed for anyContinue reading “Sta-Rite Diffuser O-Ring \u2014 5P4R, DYNA-GLASS, SW5P4R (RU9374)”<\/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":[2058],"product_tag":[],"class_list":["post-23268","product","type-product","status-publish","product_cat-spare-parts-pumps","first","onbackorder","taxable","shipping-taxable","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":null,"details_product":[{"text_details_type":"yes","text_details_product":"Direct OEM replacement"},{"text_details_type":"yes","text_details_product":"Cheap insurance during any pump service"},{"text_details_type":"yes","text_details_product":"Genuine Sta-Rite spec elastomer"},{"text_details_type":"no","text_details_product":"Sold as single o-ring \u2014 buy a spare with each diffuser service"},{"text_details_type":"no","text_details_product":"Requires silicone grease (not petroleum) for correct installation"}],"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":"\nSta-Rite Diffuser O-Ring \u2014 5P4R, DYNA-GLASS, SW5P4R (RU9374) | PoolPartHub<\/title>\n<meta name=\"description\" content=\"Sta-Rite diffuser o-ring for 5P4R, DYNA-GLASS, SW5P4R pool pumps \u2014 genuine OEM (RU9374). Standard wear part on every seal service.\" \/>\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\/ro\/product\/sta-rite-diffuser-o-ring-5p4r-dyna-glass-sw5p4r-ru9374\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sta-Rite Diffuser O-Ring \u2014 5P4R, DYNA-GLASS, SW5P4R (RU9374)\" \/>\n<meta property=\"og:description\" content=\"Sta-Rite diffuser o-ring for 5P4R, DYNA-GLASS, SW5P4R pool pumps \u2014 genuine OEM (RU9374). Standard wear part on every seal service.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.poolparthub.com\/ro\/product\/sta-rite-diffuser-o-ring-5p4r-dyna-glass-sw5p4r-ru9374\/\" \/>\n<meta property=\"og:site_name\" content=\"PoolPartHub\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-21T13:39:42+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.poolparthub.com\\\/product\\\/sta-rite-diffuser-o-ring-5p4r-dyna-glass-sw5p4r-ru9374\\\/\",\"url\":\"https:\\\/\\\/www.poolparthub.com\\\/product\\\/sta-rite-diffuser-o-ring-5p4r-dyna-glass-sw5p4r-ru9374\\\/\",\"name\":\"Sta-Rite Diffuser O-Ring \u2014 5P4R, DYNA-GLASS, SW5P4R (RU9374) | PoolPartHub\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.poolparthub.com\\\/#website\"},\"datePublished\":\"2026-08-25T06:26:25+00:00\",\"dateModified\":\"2026-09-21T13:39:42+00:00\",\"description\":\"Sta-Rite diffuser o-ring for 5P4R, DYNA-GLASS, SW5P4R pool pumps \u2014 genuine OEM (RU9374). 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