Plastic Funnel Holder For Retort Stands

Funnel Holder, Plastic

Corrosion-Resistant Polypropylene Architecture: Precision-molded from medical-grade polypropylene, ensuring total resistance to aggressive acids and alkalis while providing a non-sparking safety profile in volatile chemical environments.

Universal Tapered Clamping Interface: Features a specialized internal wedge design and a high-torque adjustment screw, facilitating a secure, vibration-free grip on support rods up to 12.5mm in diameter without marring surface coatings.

$3.38

Quick Answer: A plastic funnel holder is a ring on an arm that clamps to a laboratory stand rod and supports a funnel at a chosen height. The listing image shows a ring, a short arm and a knob-tightened clamp.

A Ring That Does Not Rust

Filtration needs the funnel held steady above the receiving vessel, with its stem touching the inner wall so the filtrate runs down without splashing. The traditional iron ring and boss rusts in the damp, acidic air of a chemistry lab, and hard metal against a glass funnel risks chipping it. A plastic holder does the same job without corrosion and is gentler on the glass.

Judging from the image, the holder slides onto a vertical stand rod through the opening at the end of the arm and is locked by turning the knob. The title does not give the ring diameter, so check that it will support the funnel sizes you use: a ring that is too large lets the funnel drop through, and one that is too small holds it too high up the cone.

The holder suits long stem filter funnels for gravity filtration, and it can also cradle a separating funnel during an extraction if the ring size fits.

Applications

Gravity filtration of a precipitate into a beaker or conical flask
Holding a funnel above a burette or bottle for filling
Supporting a separating funnel during solvent extraction
Filtration set-ups in damp or corrosive areas where iron rings rust

Specifications

Item	Funnel holder: ring on an arm with a stand-rod clamp
Mounting	Clamps to a vertical stand rod; tightened by a knob
Supports	Filter funnels, and separating funnels of suitable size
Material	Plastic, as titled
Ring diameter and rod size	Confirm at enquiry

Care & Handling

Tighten the knob only enough to hold; overtightening can crack a plastic clamp.
Position the funnel so its stem touches the inside wall of the receiver.
Rinse off acid splashes and dry the holder after use.

Why Choose LabEquip

Chemistry labs replacing rusting iron rings on their retort stands, and schools setting up many filtration stations at once, buy plastic funnel holders in sets. LabEquip lists them in its chemistry lab equipment range; share your stand rod diameter through the contact page.

Frequently Asked Questions

How does the funnel holder attach to a stand?

The clamp at the end of the arm slides over a vertical stand rod and is locked with the knob. Loosen the knob to move the holder up or down, then retighten it.

Why use a plastic holder instead of an iron ring?

Plastic does not rust in acid fumes and is gentler on glass funnels. Iron rings are stronger and heat-resistant, so they are still used wherever heating is involved.

Can it hold a separating funnel full of liquid?

It can if the ring fits the funnel and the clamp grips the rod firmly. A full separating funnel is heavy, so check that the holder does not slip, and keep the stand base under the funnel.

Where should the funnel stem sit?

Touching the inside wall of the beaker or flask below. The filtrate then runs down the glass smoothly, which reduces splashing and speeds up filtration.

How do I stop the funnel tipping?

Choose a ring that meets the funnel at about the middle of the cone, and turn the stand so its base lies beneath the funnel. A small funnel perched high on a wide ring is easily knocked.