The Filtration & Sealing category covers essential laboratory filtration, separation, and sealing operations — including funnels, Buchner funnels, filter holders, stirring plugs, solid plugs, and adapters. All products are manufactured from high-purity PTFE, offering exceptional chemical resistance, non-stick properties, and wide temperature tolerance for chemical synthesis, analytical testing, pharmaceutical, semiconductor, and environmental monitoring applications.
6 core products covering filtration, separation, and sealing operations
PTFE's unique properties make it the ideal material for laboratory filtration and sealing operations
Completely inert to HF, aqua regia, concentrated H₂SO₄, and other aggressive reagents
Continuous use from -196℃ to 260℃ — suitable for liquid nitrogen environments
Lowest surface tension among solid materials — nothing sticks, easy to clean
Pb, U leaching < 0.01ppb — suitable for ultra-trace analysis
From solid-liquid separation to system sealing — PTFE products meet all your filtration and sealing requirements
Solid-liquid separation, catalyst recovery, reaction system sealing
Sample pretreatment, filtration, HPLC solvent filtration
Sterile filtration, media sterilization, system sealing
Chemical filtration, wet etching, system sealing
Water sample filtration, soil extraction, gas sampling
University labs, research institute filtration & sealing operations
Single-item purchases or full sets available — custom sizes and specifications supported. Contact our team for professional selection advice.