{"product_id":"fisherbrand-natural-rubber-two-hole-stoppers","title":"Fisherbrand Natural Rubber Two Hole Stoppers","description":"\u003ch4\u003e\u003cstrong\u003eFisherbrand™ Natural Rubber Two Hole Stoppers \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSecure sealing for laboratory glassware requiring dual-access points, such as distillation setups, gas delivery systems, and fermentation apparatus. Ideal for chemical synthesis, educational labs, and industrial processes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Natural rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Tapered stopper with two pre-formed holes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e 10 pieces per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-hole configuration:\u003c\/strong\u003e Accommodates tubing, thermometers, or condensers simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible elasticity:\u003c\/strong\u003e 46-55 IRHD hardness ensures airtight seals on standard glassware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Resists mild acids, alkalis, and aqueous solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature resistance:\u003c\/strong\u003e Suitable for use between -30°C to 100°C (short-term)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDiameter (Metric) Hole: \u003c\/span\u003e\u003c\/strong\u003e5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 46-55 IRHD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSterility:\u003c\/strong\u003e Non-sterile\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOperational Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimplifies assembly of multi-component laboratory setups\u003c\/li\u003e\n\u003cli\u003eReduces glassware stress through gradual taper design\u003c\/li\u003e\n\u003cli\u003eEnhances safety by preventing sudden pressure releases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUsage Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMatch hole size with tubing using appropriate adapters\u003c\/li\u003e\n\u003cli\u003eLubricate with glycerol for easier insertion into glass joints\u003c\/li\u003e\n\u003cli\u003eInspect for cracks before reuse in vacuum applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fisherbrand","offers":[{"title":"Tapered Stopper (2 holes) \/ 38.5 mm \/ 33 x 38.5 mm \/ Natural Rubber \/ Red \/ Pack of 10 \/ New - Unopened (Sealed)","offer_id":51576573985095,"sku":"11567632","price":22.75,"currency_code":"USD","in_stock":false},{"title":"Tapered Stopper (2 holes) \/ 28 mm \/ 19 x 22.5 mm \/ Natural Rubber \/ Red \/ Pack of 20 \/ New - Unopened (Sealed)","offer_id":51576574017863,"sku":"11597622","price":11.64,"currency_code":"USD","in_stock":false},{"title":"Tapered Stopper (2 holes) \/ 28 mm \/ 21 x 24.5 mm \/ Natural Rubber \/ Red \/ Pack of 20 \/ New - Unopened (Sealed)","offer_id":51695079391559,"sku":"11507632","price":16.65,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/7245\/8055\/files\/convert_e85ff75e-1863-4ef1-a61c-b28d455462ea.png?v=1745943551","url":"https:\/\/checkout.wasteless.bio\/en-us\/products\/fisherbrand-natural-rubber-two-hole-stoppers","provider":"Wasteless Bio","version":"1.0","type":"link"}