Weathermatic 49-10DSA Diaphragm Assembly for 1.5" Black Bullet Valve

Replace worn or damaged diaphragms with the OEM Weathermatic 49-10DSA Diaphragm Assembly. Designed specifically for the 21024E-15D 1.5" Black Bullet valve, this complete assembly restores reliable hydraulic control and valve performance without replacing the valve body. The diaphragm is molded to resist chlorine and chloramine, and the assembly is a direct OEM part for quick, confident service.

• OEM fit: Direct replacement for Weathermatic part 49-10DSA used in 21024E-15D 1.5" Black Bullet valves.
• Durable materials: Molded, chlorine- and chloramine-resistant diaphragm for long service life in irrigation systems.
• Complete assembly: Includes the diaphragm components needed to restore sealing and hydraulic action—sold as a ready-to-install unit.
• Improves reliability: Restores proper valve shutoff and reduces leakage and cycling caused by worn diaphragms.
• Easy service: Fits existing valve cover and body configuration; requires basic valve disassembly and standard irrigation tools.
• OEM part number: 49-10DSA — use this SKU to confirm compatibility with your valve model before purchase.

For safe installation, shut off system pressure, remove the valve cover per Weathermatic instructions, and replace the diaphragm assembly following manufacturer guidance. If you’re unsure about fit or installation, consult a licensed irrigation technician or refer to Weathermatic service documentation for step-by-step guidance.