{"product_id":"waterway-2-fbt-x-1-5-slip-2-spigot-pump-union-400-9230","title":"Waterway 2\" FBT x 1.5\" Slip \/ 2\" Spigot  Pump Union | 400-9230","description":"\u003cstyle\u003e\n  .atb-product-description {\n    --atb-teal: #198278;\n    --atb-teal-dark: #11675f;\n    --atb-orange: #e37c3f;\n    --atb-orange-dark: #af5b31;\n    --atb-navy: #123f46;\n    --atb-black: #202124;\n    --atb-gray: #5f6368;\n    --atb-light: #f5f8f8;\n    --atb-border: #dce5e4;\n    --atb-white: #ffffff;\n    --atb-aqua-light: #edf7f6;\n    --atb-orange-light: #fff5ee;\n\n    max-width: 1050px;\n    margin: 0 auto;\n    font-family: Arial, Helvetica, sans-serif;\n    font-size: 16px;\n    line-height: 1.65;\n    color: var(--atb-black);\n  }\n\n  .atb-product-description * {\n    box-sizing: border-box;\n  }\n\n  .atb-hero {\n    position: relative;\n    overflow: hidden;\n    background: linear-gradient(\n      135deg,\n      var(--atb-navy) 0%,\n      var(--atb-teal-dark) 55%,\n      var(--atb-teal) 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p {\n    margin-top: 0;\n  }\n\n  .atb-support {\n    margin-top: 28px;\n    padding: 21px;\n    background: var(--atb-aqua-light);\n    border: 1px solid #b9ddd8;\n    border-radius: 11px;\n  }\n\n  .atb-support h3 {\n    color: var(--atb-teal-dark);\n    margin: 0 0 8px;\n    font-size: 20px;\n  }\n\n  .atb-support p {\n    margin: 0;\n  }\n\n  @media (max-width: 700px) {\n    .atb-hero {\n      padding: 26px 22px;\n    }\n\n    .atb-hero h2 {\n      font-size: 25px;\n    }\n\n    .atb-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .atb-spec-table,\n    .atb-spec-table tbody,\n    .atb-spec-table tr,\n    .atb-spec-table th,\n    .atb-spec-table td {\n      display: block;\n      width: 100%;\n    }\n\n    .atb-spec-table th {\n      border-bottom: 0;\n      padding-bottom: 5px;\n    }\n\n    .atb-spec-table td {\n      padding-top: 4px;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"atb-product-description\"\u003e\n\n  \u003cdiv class=\"atb-hero\"\u003e\n    \u003ch2\u003eWaterway 400-9230 2\" Pump Union Assembly\u003c\/h2\u003e\n    \u003cp\u003e\n      The \u003cstrong\u003eWaterway 400-9230\u003c\/strong\u003e is a complete pump half-union designed for\n      pool and spa pump connections requiring a \u003cstrong\u003e2-inch female buttress-thread union\u003c\/strong\u003e.\n      Its combination tailpiece provides a \u003cstrong\u003e1-1\/2\" slip socket and 2\" spigot connection\u003c\/strong\u003e,\n      making it a versatile replacement or retrofit fitting for compatible pump plumbing.\n    \u003c\/p\u003e\n\n    \u003cdiv class=\"atb-badges\"\u003e\n      \u003cspan class=\"atb-badge\"\u003eWaterway Plastics\u003c\/span\u003e\n      \u003cspan class=\"atb-badge\"\u003ePart # 400-9230\u003c\/span\u003e\n      \u003cspan class=\"atb-badge\"\u003e2\" FBT Pump Union\u003c\/span\u003e\n      \u003cspan class=\"atb-badge\"\u003eO-Ring Included\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-answer\"\u003e\n    \u003cstrong\u003eWhat is the Waterway 400-9230?\u003c\/strong\u003e\u003cbr\u003e\n    The Waterway 400-9230 is a pump union assembly featuring a\n    \u003cstrong\u003e2\" female buttress-thread union nut\u003c\/strong\u003e and a combination\n    \u003cstrong\u003e1-1\/2\" slip \/ 2\" spigot tailpiece\u003c\/strong\u003e. It allows a compatible pool or spa\n    pump to connect to PVC plumbing while retaining a removable union connection for future\n    pump service or replacement.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-section\"\u003e\n    \u003ch2\u003eWaterway 400-9230 Features\u003c\/h2\u003e\n\n    \u003cdiv class=\"atb-grid\"\u003e\n      \u003cdiv class=\"atb-card\"\u003e\n        \u003ch3\u003e2\" Pump-Side Union Connection\u003c\/h3\u003e\n        \u003cp\u003e\n          The union nut is designed for pumps using a compatible\n          \u003cstrong\u003e2-inch male buttress-thread connection\u003c\/strong\u003e, providing the larger\n          pump-side fitting used on many pool and spa pump applications.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"atb-card\"\u003e\n        \u003ch3\u003eDual-Size Plumbing Tailpiece\u003c\/h3\u003e\n        \u003cp\u003e\n          The tailpiece accommodates either a \u003cstrong\u003e1-1\/2\" slip connection\u003c\/strong\u003e\n          or a \u003cstrong\u003e2\" spigot connection\u003c\/strong\u003e, giving installers flexibility when\n          matching existing plumbing.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"atb-card\"\u003e\n        \u003ch3\u003eServiceable Union Design\u003c\/h3\u003e\n        \u003cp\u003e\n          The removable union allows the pump to be disconnected from the plumbing\n          without cutting the PVC each time the pump requires service or replacement.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"atb-card\"\u003e\n        \u003ch3\u003eComplete Half-Union Assembly\u003c\/h3\u003e\n        \u003cp\u003e\n          Waterway part \u003cstrong\u003e400-9230\u003c\/strong\u003e includes the union nut,\n          combination tailpiece and sealing O-ring required for the pump-side union assembly.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-section\"\u003e\n    \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n    \u003cdiv class=\"atb-spec-wrap\"\u003e\n      \u003ctable class=\"atb-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003cth\u003eManufacturer\u003c\/th\u003e\n            \u003ctd\u003eWaterway Plastics\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n            \u003ctd\u003e400-9230\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eProduct Type\u003c\/th\u003e\n            \u003ctd\u003ePump Half-Union Assembly\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003ePump-Side Connection\u003c\/th\u003e\n            \u003ctd\u003e2\" Female Buttress Thread (FBT)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003ePlumbing Connection\u003c\/th\u003e\n            \u003ctd\u003e1-1\/2\" Slip \/ 2\" Spigot Combination Tailpiece\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eUnion Nut Size\u003c\/th\u003e\n            \u003ctd\u003e2\"\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eTailpiece\u003c\/th\u003e\n            \u003ctd\u003e2\" Spigot with 1-1\/2\" Slip Socket\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eO-Ring\u003c\/th\u003e\n            \u003ctd\u003eIncluded\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eApplication\u003c\/th\u003e\n            \u003ctd\u003eCompatible pool and spa pump plumbing connections\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003cth\u003eUPC\u003c\/th\u003e\n            \u003ctd\u003e806105078209\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-note\"\u003e\n    \u003cstrong\u003eImportant Fitment Note:\u003c\/strong\u003e\n    Pump union sizing can be confusing because the nominal thread size does not equal the\n    outside diameter measured across the pump threads. Before ordering, verify that your pump\n    uses the \u003cstrong\u003e2\" male buttress-thread connection\u003c\/strong\u003e required by the 400-9230.\n    Do not select a pump union based only on the diameter of the PVC pipe.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-section\"\u003e\n    \u003ch2\u003e400-9230 vs. 400-4061 Pump Union\u003c\/h2\u003e\n\n    \u003cdiv class=\"atb-grid\"\u003e\n      \u003cdiv class=\"atb-card\"\u003e\n        \u003ch3\u003eWaterway 400-9230\u003c\/h3\u003e\n        \u003cul\u003e\n          \u003cli\u003e2\" pump union nut \/ female buttress thread\u003c\/li\u003e\n          \u003cli\u003e1-1\/2\" slip connection\u003c\/li\u003e\n          \u003cli\u003e2\" spigot connection\u003c\/li\u003e\n          \u003cli\u003eO-ring included\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"atb-card\"\u003e\n        \u003ch3\u003eWaterway 400-4061\u003c\/h3\u003e\n        \u003cul\u003e\n          \u003cli\u003e1-1\/2\" pump-side buttress-thread connection\u003c\/li\u003e\n          \u003cli\u003e1-1\/2\" slip plumbing connection\u003c\/li\u003e\n          \u003cli\u003eSmaller pump-side union than the 400-9230\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cp\u003e\n      If a \u003cstrong\u003eWaterway 400-4061 is too small to fit the pump's threaded connection\u003c\/strong\u003e,\n      the 400-9230 may be the appropriate larger union when the pump has the required\n      2\" male buttress threads. Always confirm the pump connection before installation.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-section\"\u003e\n    \u003ch2\u003eInstallation \u0026amp; Compatibility FAQs\u003c\/h2\u003e\n\n    \u003cdiv class=\"atb-accordion\"\u003e\n\n      \u003cdetails\u003e\n        \u003csummary\u003eWhat size pump connection does the Waterway 400-9230 fit?\u003c\/summary\u003e\n        \u003cdiv class=\"atb-accordion-content\"\u003e\n          \u003cp\u003e\n            The 400-9230 is designed for a compatible \u003cstrong\u003e2-inch male buttress-thread\n            pump connection\u003c\/strong\u003e. The union nut threads onto the pump while the included\n            O-ring creates the seal at the union face.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/details\u003e\n\n      \u003cdetails\u003e\n        \u003csummary\u003eIs the Waterway 400-9230 a 1-1\/2\" or 2\" fitting?\u003c\/summary\u003e\n        \u003cdiv class=\"atb-accordion-content\"\u003e\n          \u003cp\u003e\n            It incorporates both sizes in different parts of the fitting. The pump-side union\n            is a \u003cstrong\u003e2\" connection\u003c\/strong\u003e, while the combination tailpiece provides a\n            \u003cstrong\u003e1-1\/2\" slip socket and 2\" spigot\u003c\/strong\u003e.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/details\u003e\n\n      \u003cdetails\u003e\n        \u003csummary\u003eWhat does 1-1\/2\" slip \/ 2\" spigot mean?\u003c\/summary\u003e\n        \u003cdiv class=\"atb-accordion-content\"\u003e\n          \u003cp\u003e\n            The inside of the tailpiece is sized to accept compatible\n            \u003cstrong\u003e1-1\/2\" PVC pipe as a slip connection\u003c\/strong\u003e. The outside of the\n            tailpiece functions as a \u003cstrong\u003e2\" spigot\u003c\/strong\u003e, allowing it to fit into\n            an appropriate 2\" socket-style fitting.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/details\u003e\n\n      \u003cdetails\u003e\n        \u003csummary\u003eDoes the Waterway 400-9230 include an O-ring?\u003c\/summary\u003e\n        \u003cdiv class=\"atb-accordion-content\"\u003e\n          \u003cp\u003e\n            Yes. Waterway identifies the 400-9230 as a complete union assembly consisting\n            of the \u003cstrong\u003eunion nut, combination tailpiece and O-ring\u003c\/strong\u003e.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/details\u003e\n\n      \u003cdetails\u003e\n        \u003csummary\u003eIs 400-9230 the same as Waterway 400-4061?\u003c\/summary\u003e\n        \u003cdiv class=\"atb-accordion-content\"\u003e\n          \u003cp\u003e\n            No. The \u003cstrong\u003e400-4061 uses a smaller 1-1\/2\" pump-side union connection\u003c\/strong\u003e.\n            The \u003cstrong\u003e400-9230 uses the larger 2\" pump-side union\u003c\/strong\u003e and a combination\n            1-1\/2\" slip \/ 2\" spigot tailpiece. They should not be treated as interchangeable\n            without checking the pump connection.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/details\u003e\n\n      \u003cdetails\u003e\n        \u003csummary\u003eHow do I know if 400-9230 will fit my pump?\u003c\/summary\u003e\n        \u003cdiv class=\"atb-accordion-content\"\u003e\n          \u003cp\u003e\n            Verify the pump manufacturer and model number whenever possible and confirm that\n            the pump uses a \u003cstrong\u003e2\" male buttress-thread union connection\u003c\/strong\u003e.\n            Measuring only the PVC pipe size is not enough to determine pump-union compatibility.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/details\u003e\n\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"atb-support\"\u003e\n    \u003ch3\u003eNeed Help Confirming Fitment?\u003c\/h3\u003e\n    \u003cp\u003e\n      Pump unions that look nearly identical can use different thread diameters and plumbing\n      connections. If you are replacing an existing union and are unsure whether\n      \u003cstrong\u003eWaterway 400-9230\u003c\/strong\u003e is correct, send Aqua Terra Backyard your pump\n      manufacturer, model number, and clear photos of the threaded pump connection and\n      existing plumbing. Our team can help verify the correct fitting before installation.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Waterway Plastics","offers":[{"title":"Default Title","offer_id":67580300230930,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/Screenshot2026-09-28133221.png?v=1790616765","url":"https:\/\/www.aquaterrabackyard.com\/products\/waterway-2-fbt-x-1-5-slip-2-spigot-pump-union-400-9230","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}