Liner Air Vent w/ Bulkhead - 1 1/2"

Liner Air Vent w/ Bulkhead - 1 1/2" (LAV)

• Use these 1½" vents to release air or water trapped under pond liners.
• Includes 1½" bulkhead fitting and pressure relief fitting.
• Keeps liners from floating up when air (or water) gets trapped underneath