DeVilbiss TGC545 37oz Aluminum Suction Feed Cup. Aluminum suction cups incorporate a two-position special lid design - one as drip-free cup, the other as conventional open "vent" suction feed cup. Smooth metal surfaces. Use with all suction feed spray guns. Can be used with all DeVilbiss and most other suction feed spray guns with a 3/8" NPS fluid inlet.