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Close-up of Toro 9-6331 1-inch diaphragm support showing the molded support insert and seating surface on a white background, angled view.

Toro 9-6331 1" Diaphragm Support — Fits 250/252/254/260/264

Brand: Toro
Save 44%
$6.04
$3.40
SKU 9-6331
In Stock (36)

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Replacement Toro 9-6331 diaphragm support designed for 1" irrigation valves. This OEM-compatible support fits Toro 250, 252, 254, 260 and 264 series 1-inch valves and helps maintain correct diaphragm seating so valves open and close reliably during zone operation.

  • Fits models: Direct-fit for Toro 250, 252, 254, 260 and 264 series 1" valves.
  • Purpose: Supports the valve diaphragm to ensure consistent sealing, accurate flow control and dependable shutoff.
  • Part number: Toro part 9-6331 — replacement support for worn or damaged diaphragm seats.
  • Weight & handling: Very lightweight replacement — manufacturer listings show an approximate product weight of 0.022 lb for easy shipping and stocking.
  • Installation: Designed for quick service during diaphragm or valve maintenance; typically replaced when servicing the diaphragm assembly.
  • Applications: Suitable for residential and light commercial irrigation systems where Toro 1" valves are used.

Keep this genuine Toro support in your maintenance kit to restore valve performance after diaphragm wear. If you’re unsure about compatibility, check your valve series stamping or consult an irrigation professional before ordering.

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Frequently Asked Questions

What Toro valve models does this part fit?
This support fits Toro 1" 250, 252, 254, 260 and 264 series valves as a direct replacement for the diaphragm support.
How do I know when to replace the diaphragm support?
Replace the support when you remove the diaphragm and see cracking, distortion, or when valves fail to seal properly after cleaning.
Is this an original Toro part number 9-6331?
Yes — this item is listed under Toro part number 9-6331 and sold as the replacement diaphragm support for the listed series.
Can I install this part without special tools?
Yes — the support is a small insert replaced during diaphragm service; basic hand tools and valve disassembly are usually sufficient.