Practical beaker protection: These stainless steel beaker covers are sized to fit a range of laboratory beakers, from 1.2 L up to 12 L. Placing a cover over a beaker is a simple but valuable step in careful laboratory practice: it helps limit evaporation of the contents during heating, mixing, and standing, and it reduces the chance that airborne dust, particulates, or debris will settle into and contaminate a sample. That protection matters both for preserving sample integrity and for keeping measured volumes and concentrations stable over the course of a procedure. Durable stainless steel construction: Each cover is made of stainless steel, a material chosen throughout laboratories for its corrosion resistance, easy cleaning, and tolerance of a wide range of chemicals and temperatures. Unlike disposable films or foils, a stainless cover can be washed and returned to service many times without tearing or degrading, which makes it both economical over its lifetime and dependable in demanding, high-throughput environments where covers are used and cleaned constantly. A full range of sizes: The group spans six sizes so a cover can be matched closely to the beaker in use: 1.2 L, 2 Qt, 4 L, 6 Qt, 8.25 Qt, and 12 L. A well-matched cover sits properly and delivers the best evaporation control and contamination protection, whereas an ill-fitting cover leaves gaps. The 12 L version is supplied in a case of four, which suits laboratories that standardize on larger vessels and want covers on hand for each. Everyday reliability: Because they are metal rather than single-use, these covers hold up to routine autoclaving-style washing cycles and repeated handling far better than disposable coverings. Reaching for a correctly sized stainless cover becomes a habit that quietly protects samples during heating on a hot plate, while a preparation stands between steps, or during short-term storage on the bench, supporting cleaner, more repeatable results across the laboratory's daily work. Recommended For Covering stainless or glass beakers during heating and mixing Reducing evaporation of beaker contents Limiting airborne contamination of samples General laboratory and industrial use Product Details Product type: Stainless steel beaker cover Material: Stainless steel Available sizes: 1.2 L, 2 Qt, 4 L, 6 Qt, 8.25 Qt, 12 L Packaging note: 12 L cover supplied as case of 4 (C/4) Warning: California Prop 65 Available Variants B4301 — Beaker Cover 1.2 L Stainless B4302 — Beaker Cover 2 Qt Stainless B4304 — Beaker Cover 4 L Stainless B4306 — Beaker Cover S.S. 6 Qt B4308 — Beaker Cover S.S. 8.25 Qt B4307 — Beaker Cover 12 L Stainless (C/4) The variants differ only in size, spanning 1.2 L to 12 L to match common beaker capacities. The 12 L cover is packaged as a case of four. Primary Industries Laboratories and research Industrial manufacturing Food and beverage Education Standards and Certifications None specified by source (California Prop 65 warning applies)
