{"product_id":"rubber-sprue-bases-tree-type-1-3-4-to-5-inch","title":"Sprue Bases - Tree Type","description":"\u003cp\u003eTree type rubber sprue bases designed to fit standard casting flasks in a range of diameters. Each base features a center hole sized to accept 3\/8\" sprue wax, making them compatible with sprue wax forms such as Otto Frei #121.508 and #121.524. Available in eight sizes to match flask diameters from 1-3\/4\" up to 5\", these sprue bases are an essential component for investment casting setups.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTree type rubber sprue base construction\u003c\/li\u003e\n\u003cli\u003eCenter hole sized to fit 3\/8\" sprue wax\u003c\/li\u003e\n\u003cli\u003eAvailable in eight flask diameter sizes\u003c\/li\u003e\n\u003cli\u003eDesigned to seat securely in standard casting flasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eTree Type Rubber Sprue Base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCenter Hole\u003c\/th\u003e\n\u003ctd\u003e3\/8\" (fits standard sprue wax)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizes Available\u003c\/th\u003e\n\u003ctd\u003e1-3\/4\" – 5\" diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eFlask Diameter (Imperial)\u003c\/th\u003e\n\u003cth\u003eFlask Diameter (Metric)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.824\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.825\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\"\u003c\/td\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.826\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e65mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.827\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003e75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.828\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\"\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.829\u003c\/td\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.830\u003c\/td\u003e\n\u003ctd\u003e5\"\u003c\/td\u003e\n\u003ctd\u003e128mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e121.882\u003c\/td\u003e\n\u003ctd\u003e3-3\/8\"\u003c\/td\u003e\n\u003ctd\u003e85mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"2\" \/ 50mm","offer_id":47551722324182,"sku":"121.824","price":4.5,"currency_code":"USD","in_stock":true},{"title":"1-3\/4\" \/ 45mm","offer_id":47551722291414,"sku":"121.825","price":6.5,"currency_code":"USD","in_stock":true},{"title":"2-1\/2\" \/ 65mm","offer_id":47551722356950,"sku":"121.826","price":5.5,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 75mm","offer_id":47551722389718,"sku":"121.827","price":6.5,"currency_code":"USD","in_stock":true},{"title":"3-1\/2\" \/ 90mm","offer_id":47551722455254,"sku":"121.828","price":7.0,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 100mm","offer_id":47551722488022,"sku":"121.829","price":7.5,"currency_code":"USD","in_stock":true},{"title":"5\" \/ 128mm","offer_id":47551722520790,"sku":"121.830","price":6.0,"currency_code":"USD","in_stock":true},{"title":"3-3\/8\" \/ 85mm","offer_id":47551722422486,"sku":"121.882","price":6.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/sprue-bases-tree-type-otto-frei.jpg?v=1719955521","url":"https:\/\/www.ottofrei.com\/products\/rubber-sprue-bases-tree-type-1-3-4-to-5-inch","provider":"Otto Frei","version":"1.0","type":"link"}