Features:

• The overfill prevention valve is designed to prevent overfilling storage tanks by providing a positive shut-off during a pressurized fill.
• Installs directly onto a 4-inch riser or top-mounted spill container.
• Minimum shut-off height is 2" from the tank top.
• 2.35" of float height adjustment.
• Drop tube adaptor accepts 2" drop fill tubes (Morrison 419).
• Full flow to shut-off point; cushioned closure eliminates shock.
• Integral pressure relief.
• Integral anti-siphon function.