20" Opening and hydro-statically tested to 47 PSI. Manway has 6 quick release hold downs with nylon corrosion resistant wear plates This Pelican manlid is Interchangeable with otheriIndustrysStandards. 30 PSI MAWP, aluminum weld collar aluminum cam lever handles,
WARNING: California Proposition 65 - Cancer and Reproductive Harm - www.P65Warnings.ca.gov