Often used in laboratory applications, these drains have a removable collection trap that catches sediment and objects. Traps also block vapors from returning up through the drain.

Drains with slip-joint connection include an adapter tube with an unthreaded male outlet for use as an extension to another slip-joint connection. Trap withstands frost, boiling water, and detergents.

Drain with pipe connection has a semi-clear trap so you can see when it needs to be emptied. Trap withstands harsh chemicals.