Hunter 518900SP 3 in. ICV-301 Diaphragm Assembly (518900SP)

Hunter 518900SP Diaphragm Assembly for the ICV-301

The Hunter 518900SP is the replacement diaphragm assembly for the Hunter ICV-301 3 in. glass-filled nylon valve. Swap this assembly when the valve will not seal, will not open, or weeps at the seat, instead of replacing the valve body.

Key Specifications & Features

• SKU: 518900SP (also cataloged as 518900)
• Brand: Hunter
• Part: Diaphragm assembly, item 10 on the ICV-301 parts list
• Fits: Hunter ICV-301 3 in. plastic globe/angle valve
• Version: Standard diaphragm. Not the Filter Sentry assembly (518905SP) and not the purple reclaimed assembly (518901SP)
• Material: Fabric-reinforced EPDM diaphragm used on the ICV valve
• Includes: Diaphragm assembly only. Spring, diaphragm support, and filter screen are separate parts

Frequently Asked Questions

What valve does the Hunter 518900SP fit?
The Hunter 518900SP is the diaphragm assembly for the 3 in. ICV-301 plastic valve. It is the standard, non-Filter Sentry part.

Is the 518900SP a full valve repair kit?
It is the diaphragm assembly, which is the part replaced to restore sealing on an ICV-301. The diaphragm spring, diaphragm support, and filter screen are separate Hunter parts and are not in this assembly.

Will 518900SP fit an ICV-301 with Filter Sentry?
No. Valves with Filter Sentry use diaphragm assembly 518905SP. Purple reclaimed-water valves use 518901SP. 518900SP is the standard black diaphragm assembly.

How is warranty handled on the Hunter 518900SP?
Warranty terms are set by Hunter. See Hunter’s published warranty policy.