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Hunter 387800-H 1-inch diaphragm assembly for ICV-101G irrigation valve — replacement diaphragm on white background

Hunter 387800-H 1 in. Diaphragm Assembly for ICV-101G

Brand: Hunter
Save 28%
$26.28
$19.05
SKU 387800-H
In Stock (3)

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Replacement diaphragm assembly engineered for Hunter irrigation valves. Part number 387800-H fits 1-inch ICV series valves such as the ICV-101G and restores reliable, leak-resistant operation using a double-beaded diaphragm seal design.

  • Compatible with Hunter ICV-101G plastic globe valves (1 in.).
  • Double-beaded seal design helps prevent leaks and improves valve longevity.
  • Direct replacement part — installs without modifying the valve body.
  • Ideal for maintenance and repair of irrigation systems; sold as a single assembly.
  • Backed by Hunter's parts catalog references; check your valve model before ordering.

For installation, follow the valve service instructions and replace the diaphragm if the valve shows intermittent leaks or will not close. Keep spare diaphragms on hand for routine maintenance to minimize downtime. Refer to Hunter documentation for part compatibility and safety information.

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Frequently Asked Questions

What valves does this diaphragm assembly fit?
Fits Hunter 1-inch ICV series valves, including the ICV-101G. Verify your valve model before ordering.
How do I know when to replace the diaphragm?
Replace when the valve leaks, won't close, or cycles irregularly. Inspect the diaphragm for tears, deformation, or debris buildup.
Can I install this part myself or do I need a pro?
Most homeowners can replace the diaphragm with basic tools by following Hunter's valve service instructions. Always shut off water and follow safety steps.