50–500 mL Caps, PP, Natural — 208-5136-030 | 100/Bag | Caplugs® Evergreen

60 mm Ribbed Funnel, Polypropylene — Laboratory Transfer Funnel, Natural, 100/Bag (208-5136-030)

The Caplugs® Evergreen 60 mm ribbed funnel is a single-use polypropylene laboratory funnel with a 60 mm diameter opening, supplied non-sterile in 100/Bag packaging for high-throughput transfer workflows. Longitudinal ribs along the inner cone wall create air channels between the funnel and the liquid surface, preventing the suction seal that blocks flow and causes splashing when using smooth-wall funnels. The 60 mm opening accommodates standard flask and bottle neck sizes and provides ample cross-sectional area for liquids, powders, and granular solids.

Technical Specifications

Applications

• Liquid transfer into 50–500 mL Erlenmeyer flasks and round-bottom flasks — ribs eliminate suction lock for smooth, controlled flow
• Reagent bottle filling for narrow-neck bottles from 125 to 1000 mL, where the 60 mm opening fits standard neck diameters
• SPE eluate collection and transfer using acetonitrile or methanol mobile phases — PP's solvent resistance makes these funnels the right choice over polystyrene alternatives
• Powder and granular solid transfer into volumetric flasks and weighing bottles, where the ribbed wall reduces bridging of fine particles
• Gravity filtration setups accepting standard 9–11 cm filter paper over conical collection flasks
• Column packing for SPE and chromatography columns, providing controlled solvent and sorbent addition
• Multi-analyte and GMP workflows where single-use format eliminates the cost and compliance burden of funnel cleaning and re-validation

Chemical Resistance

Quality & Procurement

Made in USA, these Caplugs® Evergreen funnels are produced from FDA-compliant, food-contact-grade polypropylene resin under ISO 9001 quality management, and are certified BPA-free, phthalate-free, and latex-free. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, typically same business day for stocking items, with volume pricing available for institutional, grant-funded, and GMP procurement programs.

Frequently Asked Questions

Why choose a ribbed funnel over a smooth-wall funnel?
The longitudinal ribs along the inner cone wall create air channels that allow air to escape upward as liquid flows downward. A smooth-wall funnel can form a suction seal against the container neck, which slows or blocks flow and increases splash risk — particularly problematic when transferring solvents or corrosive reagents.

Why use polypropylene instead of polystyrene for this funnel?
Polypropylene offers significantly broader solvent compatibility than polystyrene. PP handles organic solvents such as acetonitrile and methanol, dilute acids and bases, and aggressive cleaning reagents that can stress-crack or cloud a polystyrene funnel. If your transfers are limited to standard aqueous samples, a PS funnel is a suitable alternative; for any organic solvent work, PP is the appropriate choice.

Are these funnels autoclavable?
Polypropylene is autoclavable as a material class, but these funnels are supplied non-sterile and are intended as single-use consumables. For sterile transfer applications, check with your sterility protocol before reprocessing.

What container sizes does the 60 mm opening fit?
The 60 mm diameter opening accommodates standard laboratory flask and bottle neck sizes commonly found on Erlenmeyer flasks (50–500 mL), round-bottom flasks, and narrow-neck reagent bottles from 125 to 1000 mL. It also accepts standard 9–11 cm filter paper for gravity filtration setups.