FZN Vaccum Filteration Assembly Flask with filter disk, Funnel, Clamp and Pipe | Filter Membrane Flask for Lab 500 ML |All Glass Filter Holder, Socket Type, Filtration Assembly

Other than a small chip on the rounded edge, this Büchner funnel appears to be of high quality, with a solid and well-constructed design. It fits securely and functions effectively for vacuum filtration. However, the presence of chips is a bit disappointing, as they may affect durability over time. Despite this minor flaw, it remains a functional and valuable addition to any lab setup.

The vacuum filtration apparatus features thick, sturdy glass, particularly in the flask, ensuring durability. However, there is a significant issue with the seal where the funnel's lower section connects to the graduated beaker and filter. It tends to leak from the sides unless a continuous vacuum is maintained, indicating that air is also being drawn in from the same spot.

A compact and durable product, well-packaged for safe delivery. Offers excellent quality at a much more affordable price compared to major science brands. Highly recommended!

This high-quality vacuum filtration unit includes a durable plastic lid, a 300 mL glass funnel, a glass fritted base, a rubber stopper with a hole, a 500 mL glass flask, and a sturdy anodized aluminum clamp. The strong clamp ensures a secure connection between the funnel and base during filtration. While designed for 50 mm paper filters, it also performs exceptionally well with 47 mm glass fiber filters and other 47 mm options. A great value for reliable filtration!

The product was excellently packed, which I really appreciate, and it arrived in perfect condition. The quality appears to be solid with no visible manufacturing defects. The ground joint is well-made with no looseness, which is often an issue in lower-quality products. The glass frit filter is flat, aligns well when assembled, and has a smooth finish. Overall, it offers great value for the price.

The build quality is generally good, and it serves its purpose well. However, the vacuum hose has a minor leak, so for slow filtration, the pump needs to stay on.While heating the flask to dissolve solids inside, the bottom broke off. I didn't use more heat than other borosilicate flasks and beakers have handled, but the design appears to be less resistant to warming or heating.