Super Max Bailer – Inside MountFlange Size: – 78 x 135mm (3-1/8 x 5-5/16″)The ANDERSEN automatic bailers are available world wide and recognized by dinghy sailors as the most effective and reliable means of automatic bailing.ANDERSEN Bailers are made of Stainless Steel, guaranteeing you many years of trouble free service.Features:Effective and reliable means of automatic bailingMade of stainless steel and guaranteeing years of trouble free servicing