Used in electrophoresis for separating DNA fragments, especially in the size range of 100 bp to 10 kb. The 3% concentration provides high resolution for small to medium DNA fragments. Pre-cast format saves preparation time and ensures consistency across runs. Ideal for routine DNA analysis such as PCR product verification, restriction digestion checks, and genotyping. Compatible with standard horizontal electrophoresis chambers. The 8-well comb allows multiple samples to be run simultaneously. Commonly used with TAE buffer for optimal buffering and conductivity. Requires no gel pouring, reducing exposure to ethidium bromide or other stains during preparation. Suitable for both research and educational labs where speed and reproducibility are important.