{"product_id":"haywardpoolproductsinc_spx1491b","title":"Hayward O-Ring for Econo-Unions SP1491 SP1492 SP1493 | SPX1491B","description":"\u003cp\u003eThe Hayward O-Ring (SPX1491B) is the OEM replacement O-ring for Hayward SP1491, SP1492, and SP1493 Econo-Union fittings.\u003c\/p\u003e\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003eIMPORTANT: LUBRICATION REQUIRED — SOLD SEPARATELY\u003c\/strong\u003e\u003cbr\u003eAlways lubricate this O-ring with a silicone-based lubricant before installation. Browse our \u003ca href=\"https:\/\/poolaroo.com\/collections\/pool-plumbing-lubricants\"\u003ePool Plumbing Lubricants\u003c\/a\u003e for a compatible silicone lubricant.\u003c\/p\u003e\n\u003cp\u003eThis O-ring seals the union body against the union nut on Hayward Econo-Union fittings, maintaining a watertight seal at the threaded joint.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eHayward Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eSPX1491B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e610377039130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePoolaroo Pro Tip\u003c\/h3\u003e\n\u003cp\u003eHayward designates this seal as O-Ring 129, a size used across several Econo-Union and fitting assemblies. Before ordering, confirm the model number stamped on your union body against SP1491, SP1492, or SP1493 to ensure correct fit, and always lubricate the O-ring with a silicone-based lubricant from our \u003ca href=\"https:\/\/poolaroo.com\/collections\/pool-plumbing-lubricants\"\u003ePool Plumbing Lubricants\u003c\/a\u003e collection before installation.\u003c\/p\u003e\n\u003c!-- wft:processed:manual:2026-09-15 --\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":54308429955347,"sku":"SPX1491B","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/sp1491-1492-1493-econo-unions-o-ring-spx1491b-2.webp?v=1786344082","url":"https:\/\/poolaroo.com\/products\/haywardpoolproductsinc_spx1491b","provider":"Poolaroo","version":"1.0","type":"link"}