English: Five snorkel mouthpiece types are illustrated.

Type A is a flanged mouthpiece with twin lugs at the end of a length of flexible corrugated hose designed for a flex-hose snorkel.

Type B is a flanged mouthpiece with twin lugs at the end of a short neck designed for a J-shaped snorkel.

Type C is a flanged mouthpiece with twin lugs positioned at a right angle and designed for an L-shaped snorkel.

Type D is a flanged mouthpiece with twin lugs at the end of a flexible U-shaped elbow designed to be combined with a straight barrel to create a J-shaped snorkel.

Type E is a flanged mouthpiece with twin bite plates offset at an angle from a contoured snorkel.