Arrow t53-04, drop leg drain 1/2″ npt, poly bowl, 150 psi the t-53 series float type drain is provided with a top threaded port. This drain features a poly bowl with a bowl guard and a protective stainless steel screen with an umbrella baffle, providing a large sump area for oil sludge and dirt. It is used to give continued performance and low maintenance to drain accumulated water and oil from drain lines, receiver tanks, condensate drop lines and filters.