{"product_id":"magic-plastics-split-nut-buttress-thread-heater-union-2-89-238-1040","title":"Magic Plastics 0121108020 2\" Heater Split Nut Set w\/Screws","description":"\u003ch2\u003e2\" Female Buttress Thread Split Nut + Serviceable Heater Union Repair\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Magic Plastics heater-union replacement component\u003c\/li\u003e\n\u003cli\u003e2-inch female buttress thread (FBT) split nut set\u003c\/li\u003e\n\u003cli\u003eIncludes the split nut hardware and screws\u003c\/li\u003e\n\u003cli\u003eManufacturer part number 0121108020\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible 2-inch heater-union connections\u003c\/li\u003e\n\u003cli\u003eUseful for replacing a damaged union nut without misidentifying the complete union assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe \u003cstrong\u003eMagic Plastics 0121108020 Heater Split Nut Set\u003c\/strong\u003e is a genuine replacement component for compatible 2-inch heater-union connections that use a female buttress-thread split nut. Magic Plastics lists this exact part as a \u003cstrong\u003e2-inch FBT Heater Split Nut Set with screws\u003c\/strong\u003e in its current heater-union component catalog.\u003c\/p\u003e\u003cp\u003eThis is the split-nut hardware only, not a complete heater union. It is intended for service situations where the existing union connection uses the matching Magic Plastics 2-inch buttress-thread geometry and the nut itself is cracked, stripped, or otherwise damaged.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a cracked or broken 2-inch heater-union split nut\u003c\/li\u003e\n\u003cli\u003eRepairing compatible Magic Plastics heater-union connections\u003c\/li\u003e\n\u003cli\u003eApplications identified by manufacturer part 0121108020\u003c\/li\u003e\n\u003cli\u003eConnections cross-referenced by distributor number 89-238-1040\u003c\/li\u003e\n\u003cli\u003eDocumented Delta UV E\/ES Series equipment applications where this exact part is specified\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Correct Thread Style Matters\u003c\/h2\u003e\u003cp\u003ePool and spa union nuts can look similar while using different thread forms, diameters, and flange designs. This part uses a \u003cstrong\u003e2-inch female buttress thread\u003c\/strong\u003e. Do not select it only by nominal pipe size or appearance. Match the existing union connection, thread style, and manufacturer part number before ordering.\u003c\/p\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMagic Plastics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHeater Union Split Nut Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e0121108020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUPC \/ GTIN\u003c\/th\u003e\n\u003ctd\u003e806105081858\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDistributor Reference\u003c\/th\u003e\n\u003ctd\u003e89-238-1040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Size\u003c\/th\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Type\u003c\/th\u003e\n\u003ctd\u003eFemale Buttress Thread (FBT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncludes\u003c\/th\u003e\n\u003ctd\u003eSplit nut set with screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eCompatible heater-union connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDocumented Equipment Reference\u003c\/th\u003e\n\u003ctd\u003eDelta UV E\/ES Series parts listings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eCompatibility \u0026amp; Fitment Notes\u003c\/h2\u003e\u003cp\u003eMagic Plastics identifies 0121108020 as its 2-inch FBT heater split nut set with screws. Secondary equipment-parts references also list this item in Delta UV E\/ES Series UV sanitizer\/clarifier systems. Because buttress-thread unions are not universal, verify the existing union body or equipment parts diagram before ordering.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Service Notes\u003c\/h2\u003e\u003cp\u003eShut down the circulation system and relieve pressure before servicing any pool or spa plumbing connection. Confirm that the mating union components are undamaged and that the sealing washer or gasket specified for the complete union is present and serviceable. Tighten the split-nut hardware evenly and follow the equipment manufacturer's service procedure. Do not force mismatched threads.\u003c\/p\u003e\u003ch2\u003eBuy with Confidence\u003c\/h2\u003e\u003cp\u003eBenchmark Pool Supply helps customers match plumbing repair parts by manufacturer part number, thread style, nominal size, and equipment application. Before ordering 0121108020, verify that your connection requires the Magic Plastics 2-inch female buttress-thread heater split nut set.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eWhat is Magic Plastics 0121108020?\u003c\/h3\u003e\u003cp\u003eIt is a genuine Magic Plastics 2-inch female buttress-thread heater split nut set supplied with screws.\u003c\/p\u003e\u003ch3\u003eIs 89-238-1040 the Magic Plastics part number?\u003c\/h3\u003e\u003cp\u003eNo. 89-238-1040 is a distributor\/reference number. The Magic Plastics manufacturer part number is 0121108020.\u003c\/p\u003e\u003ch3\u003eDoes this include the complete heater union?\u003c\/h3\u003e\u003cp\u003eNo. This listing is for the split nut set with screws. Verify any required tailpiece, washer, gasket, or other union components separately.\u003c\/p\u003e\u003ch3\u003eWill this fit every 2-inch pool heater union?\u003c\/h3\u003e\u003cp\u003eNo. It uses a 2-inch female buttress thread, so the mating union geometry must match. Verify the existing part number or equipment parts diagram before ordering.\u003c\/p\u003e\u003ch3\u003eWhat should I check before installing the split nut?\u003c\/h3\u003e\u003cp\u003eConfirm the mating threads are correct and undamaged, relieve system pressure, inspect the union sealing components, and tighten the split-nut screws evenly according to the equipment service procedure.\u003c\/p\u003e","brand":"Magic Plastics","offers":[{"title":"Default Title","offer_id":43282060378186,"sku":"0121108020","price":13.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6580\/7178\/files\/shopping_9.webp?v=1787933780","url":"https:\/\/benchmarkpoolsupply.com\/products\/magic-plastics-split-nut-buttress-thread-heater-union-2-89-238-1040","provider":"Benchmark Pool Supply","version":"1.0","type":"link"}