{"product_id":"lead-rings-o-shaped","title":"Heathrow Scientific O-Shaped Lead Rings","description":"\u003cdiv class=\"bts-heathrow-accent-one\" style=\"box-sizing:border-box;max-width:1100px;margin:0 auto;padding:12px 0;background:#fff;color:#26332C;font-family:Open Sans,sans-serif;font-size:16px;font-weight:400;line-height:1.7;\"\u003e\n\u003ch2 style=\"font-family:Open Sans,sans-serif;font-size:24px;line-height:1.35;font-weight:600;color:#245B45;margin:30px 0 14px;border-bottom:1px solid #B7D0BF;padding-bottom:10px;\"\u003eVinyl-coated O-shaped lead rings to stabilize flasks on the bench or in water baths\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eA light flask can tip or float; a weighted ring keeps it put. Heathrow Scientific’s O-Shaped Lead Rings are vinyl coated so they will not mark or scratch benchtops and labware. Four sizes fit flasks from 125 mL up to 4000 mL, and each is sold as one blue ring.\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:28px;margin:24px 0;\"\u003e\n\u003cfigure style=\"box-sizing:border-box;flex:1 1 260px;min-width:0;margin:0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Heathrow-Scientific-LEAD-RINGS-O-SHAPED-_2049__87932.1716587089.jpg?v=1749333592\" alt=\"Manufacturer photograph of a blue vinyl-coated O-shaped lead ring\" loading=\"lazy\" style=\"display:block;width:340px;max-width:100%;height:auto;margin:0 auto;\"\u003e\u003cfigcaption style=\"font-size:13px;line-height:1.5;color:#59665F;max-width:440px;margin:12px auto 0;\"\u003eManufacturer photograph of the O-shaped lead rings (family image).\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cdiv style=\"flex:1 1 300px;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:Open Sans,sans-serif;font-size:18px;line-height:1.4;font-weight:600;color:#245B45;margin:0 0 10px;\"\u003eChoose your flask size\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 16px;padding-left:22px;line-height:1.7;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS8882A:\u003c\/strong\u003e fits 125 mL to 500 mL flasks, 210 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS8882B:\u003c\/strong\u003e fits 250 mL to 1000 mL flasks, 490 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS8882C:\u003c\/strong\u003e fits 500 mL to 2000 mL flasks, 610 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS8882D:\u003c\/strong\u003e fits 1000 mL to 4000 mL flasks, 935 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eEach size is one blue ring (1 Each). Match the flask size range to the flasks you use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-family:Open Sans,sans-serif;font-size:24px;line-height:1.35;font-weight:600;color:#245B45;margin:30px 0 14px;border-bottom:1px solid #B7D0BF;padding-bottom:10px;\"\u003eGentle on benches and labware\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eHeathrow’s one stated feature is the vinyl coating: the rings will not mark or scratch benchtops and labware. Heathrow positions them for stabilizing vessels and labware on the bench or in water baths.\u003c\/p\u003e\n\u003cdiv style=\"box-sizing:border-box;border-left:3px solid #B7D0BF;padding:2px 0 2px 18px;margin:20px 0;\"\u003e\n\u003ch3 style=\"font-family:Open Sans,sans-serif;font-size:18px;line-height:1.4;font-weight:600;color:#245B45;margin:0 0 10px;\"\u003eVinyl coating\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eThe coating protects the surfaces the ring touches. Heathrow does not name the core material or give chemical-resistance information.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"box-sizing:border-box;border-left:3px solid #B7D0BF;padding:2px 0 2px 18px;margin:20px 0;\"\u003e\n\u003ch3 style=\"font-family:Open Sans,sans-serif;font-size:18px;line-height:1.4;font-weight:600;color:#245B45;margin:0 0 10px;\"\u003eWeight for stability\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eWeight rises with size, from 210 g (0.46 lb) for the smallest ring to 935 g (2.06 lb) for the largest.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-family:Open Sans,sans-serif;font-size:24px;line-height:1.35;font-weight:600;color:#245B45;margin:30px 0 14px;border-bottom:1px solid #B7D0BF;padding-bottom:10px;\"\u003eSizes and dimensions\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eDimensions as published by Heathrow:\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:28px;margin:24px 0;\"\u003e\n\u003cfigure style=\"box-sizing:border-box;flex:1 1 260px;min-width:0;margin:0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Heathrow-Scientific-LEAD-RINGS-O-SHAPED-_1112__60816.1716587092.jpg?v=1749333592\" alt=\"Manufacturer image of O-shaped lead rings\" loading=\"lazy\" style=\"display:block;width:380px;max-width:100%;height:auto;margin:0 auto;\"\u003e\u003cfigcaption style=\"font-size:13px;line-height:1.5;color:#59665F;max-width:440px;margin:12px auto 0;\"\u003eManufacturer image of the lead rings.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cdiv style=\"flex:1 1 300px;min-width:0;\"\u003e\n\u003cul style=\"margin:0 0 16px;padding-left:22px;line-height:1.7;\"\u003e\n\u003cli\u003eHS8882A: inner diameter 1.9 in (4.8 cm), outer diameter 3 in (7.7 cm), 210 g (0.46 lb)\u003c\/li\u003e\n\u003cli\u003eHS8882B: inner diameter 2 in (5.1 cm), outer diameter 3.5 in (9 cm), 490 g (1.08 lb)\u003c\/li\u003e\n\u003cli\u003eHS8882C: inner diameter 2.2 in (5.7 cm), outer diameter 3.9 in (9.8 cm), 610 g (1.34 lb)\u003c\/li\u003e\n\u003cli\u003eHS8882D: inner diameter 2.8 in (7 cm), outer diameter 4.5 in (11.5 cm), 935 g (2.06 lb)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eFlask size ranges overlap, so check the neck or base fit for your own glassware.\u003c\/p\u003e\n\u003ch2 style=\"font-family:Open Sans,sans-serif;font-size:24px;line-height:1.35;font-weight:600;color:#245B45;margin:30px 0 14px;border-bottom:1px solid #B7D0BF;padding-bottom:10px;\"\u003eWhat the listing does not state\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003eHeathrow gives no temperature rating, chemical compatibility or safety information for these rings. Confirm those details with Blue Tiger Scientific if your water bath work involves heat or aggressive liquids.\u003c\/p\u003e\n\u003cdiv style=\"box-sizing:border-box;background:#F1F7F3;border-left:4px solid #245B45;padding:20px;margin:28px 0;\"\u003e\n\u003ch3 style=\"font-family:Open Sans,sans-serif;font-size:18px;line-height:1.4;font-weight:600;color:#245B45;margin:0 0 10px;\"\u003eOrdering lead rings\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;line-height:1.7;\"\u003e\u003cstrong\u003eEach order is 1 blue ring.\u003c\/strong\u003e Choose the flask size range on this page. Blue Tiger Scientific confirms availability and delivery details with your order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq_block\" style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope=\"\" itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: 600; margin: 0 0 16px 0;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow many rings come in one order?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eOne. Each size is sold as 1 Each.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhich sizes are available?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eHS8882A (125 mL to 500 mL), HS8882B (250 mL to 1000 mL), HS8882C (500 mL to 2000 mL) and HS8882D (1000 mL to 4000 mL).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWill the ring scratch my bench or glassware?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eHeathrow states the vinyl-coated rings will not mark or scratch benchtops and labware.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eCan I use them in a water bath?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eHeathrow lists stabilizing vessels and labware on the bench or in water baths as the use. No temperature rating is given.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat color are they?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eBlue.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow heavy are the rings?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003e210 g (0.46 lb), 490 g (1.08 lb), 610 g (1.34 lb) and 935 g (2.06 lb) for HS8882A to HS8882D.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat are the ring diameters?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eInner diameters run 1.9 to 2.8 in and outer diameters 3 to 4.5 in, depending on size. See the specification table for each.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat is the ring made of?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eHeathrow describes them as vinyl-coated lead rings. It does not give further material details.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Heathrow Scientific","offers":[{"title":"125 mL to 500 mL","offer_id":50280257880362,"sku":"BTS-HS8882A","price":25.0,"currency_code":"USD","in_stock":true},{"title":"250 mL to 1000 mL","offer_id":50280257913130,"sku":"BTS-HS8882B","price":28.0,"currency_code":"USD","in_stock":true},{"title":"500 mL to 2000 mL","offer_id":50280257945898,"sku":"BTS-HS8882C","price":32.0,"currency_code":"USD","in_stock":true},{"title":"1000 mL to 4000 mL","offer_id":50280257978666,"sku":"BTS-HS8882D","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Heathrow-Scientific-LEAD-RINGS-O-SHAPED-_2049__87932.1716587089.jpg?v=1749333592","url":"https:\/\/bluetigerscientific.com\/products\/lead-rings-o-shaped","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}