58° Angle Borosilicate Glass Filtration Funnels

These laboratory filtration funnels are made of high-quality borosilicate glass with a precise 58° cone angle. The narrower angle enhances filtration efficiency by preventing filter paper from sealing against the glass, allowing better flow. Designed for chemical resistance and durability, these funnels feature heavy-wall construction with reinforced, fire-polished edges for long-term laboratory use.

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Product Specifications

Material	Borosilicate glass
Cone Angle	58°
Stem Length	Short-stem (40-100mm) or long-stem (up to 150mm)
Diameter Options	25mm, 35mm, 50mm, 75mm, 90mm, 100mm
Thermal Shock Resistance	Low expansion coefficient (~3.3 × 10-6 K-1)
Chemical Resistance	Resistant to acids, organic solvents, salts

Item Number	Funnel i.d.	Fits Paper Diameter	Stem Length
5611-01	25mm	42.5mm	40mm
5611-03	45mm	70mm	50mm
5611-05	55mm	90mm	63mm
5611-07	65mm	110mm	63mm
5611-09	75mm	125mm	150mm

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Applications and Benefits:

• Efficient laboratory filtration with improved flow rate
• Compatible with standard filter papers
• Durable, resistant to chemical corrosion and thermal shock
• Heavy-wall glass for mechanical strength and longevity
• Fire-polished edges for safety and smooth liquid transfer
• Ideal for chemistry, environmental, and biological labs

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Caution:

Avoid using with hot concentrated phosphoric acid, hydrofluoric acid, or strong alkalis for prolonged exposure. Sudden extreme temperature changes should also be avoided to prevent breakage.

Porcelain Buchner Funnel

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The Porcelain Buchner Funnel features an integral perforated plate and straight sides. Its glazed inside and outside, except for the rim, and has a slightly tapered stem. This funnel is perfect for laboratory use.

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Product Specifications:

Material:	Porcelain
Diameter:	Available in multiple sizes:
	5307-01: 60mm
	5307-02: 75mm
	5307-03: 85mm
	5307-04: 90mm
	5307-05: 100mm
	5307-06: 110mm
	5307-07: 125mm
	5307-08: 150mm
	5307-09: 200mm
	5307-10: 250mm

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Similar Products

• Porcelain Funnel with Perforated Plate
• Buchner Funnel with Glass Frit
• Plastic Funnel for Laboratory Use
• Stainless Steel Funnel for Industrial Applications
• Filter Funnel with PTFE Membrane

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Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

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CAUTION: Handle with care as the Porcelain Buchner Funnel is glazed inside and outside, except for the rim, and has a slightly tapered stem. Use appropriate protective gear when handling.

Perfect for:

• Laboratories
• Scientists
• Chemists
• Researchers

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