Expanding twist bung, chrome plated brass. To seal, insert rubber plug and twist handle to expand and seal.

Ideal for water tanks, farm troughs, live bait tanks, boats, etc.

Tube can be cut to required length and glued into place with silicon.

DIMENSIONS:
Inside Diameter: 23mm
Cutout Diameter: 25mm
Tube Length: 60mm
Bung Depth: 31mm