Toro R726901 Diaphragm & Stem Assembly — 1" 300 Series

Replacement diaphragm and stem assembly (SKU R726901) engineered for Toro 300‑series 1" anti-siphon irrigation valves. Replacing both the diaphragm and stem together restores proper sealing and valve function while reducing the chance of future leaks or performance issues.

• OEM-compatible construction: EPDM rubber diaphragm paired with precision-molded plastic stem components for consistent sealing and movement.
• Fits 1" 300-series valves: Designed for 1-inch anti-siphon/anti-syphon valve bodies in the Toro 300 family and compatible replacement applications.
• Performance benefits: Restores valve responsiveness, improves shutoff reliability, and helps prevent intermittent flow or leakage.
• Easy replacement: Installs using basic hand tools; replacing the diaphragm and stem together streamlines repairs and reduces repeat service visits.
• Durable materials: EPDM diaphragm resists wear under normal irrigation use; molded plastic components maintain alignment and actuation precision.
• What’s included: One diaphragm and stem assembly (assembled, ready to install). Verify SKU R726901 before ordering.

For best results, depressurize the valve before disassembly and follow manufacturer guidance or consult a technician if unsure. If you need help confirming fit for a specific valve model, check the valve model number or contact technical support with the valve serial/model information.