Alconox 2513 - 3 Lab Grade Vent Caps
The Alconox 2513 is a set of three lab grade vent caps for storage of sulfuric acid and Alnochromix mixtures. Releases outgassing to mitigate risks of breaking glass storage bottles. Made of medical grade virgin polypropylene with a sonically welded PTFE 0.22 micron membrane. Meets USP Class VI biological tests for plastics. Has a 38/430 thread for most sulfuric acid bottle types.