- 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)



