Weathermatic 45-10DSA Diaphragm Assembly for 1-inch Bullet Valve

Weathermatic 45-10DSA is a complete diaphragm assembly designed specifically for 1-inch Black Bullet and Black Max irrigation valves. This replacement unit restores reliable valve operation and helps prevent leaks or erratic cycling when original diaphragms become worn.

• Direct replacement: Fits 1-inch Black Bullet and Black Max valves (compatible with model 21024E-10D), making swap-outs fast and accurate.
• Complete assembly: Includes the full diaphragm assembly for a single-step replacement—no separate parts required to restore valve function.
• Durable construction: Built from resilient elastomer materials for long life under typical irrigation conditions, resisting common wear and deformation.
• Simple installation: Replace with basic hand tools—shut off water supply, relieve system pressure, remove the bonnet, swap the assembly, then reassemble and test.
• Performance benefits: Restores consistent opening and closing, reduces drip and run-on, and helps maintain even water distribution across zones.

Reference SKU 45-10DSA and vendor Weathermatic when ordering to ensure the correct part. For best results, inspect the valve body and seat for debris before installing the new diaphragm. If you have questions about fit or installation, consult your irrigation technician or the valve manual before proceeding.