SUNSUN HJB 280 and 550 Air Pump Diaphragm – Replacement Kit (2 Pieces)

Restore your SUNSUN HJB 280 or 550 air pump’s performance with this genuine diaphragm replacement kit. Designed specifically for these electromagnetic air blowers, the diaphragms are made from durable synthetic rubber to ensure long-lasting elasticity and consistent air output. Ideal for routine maintenance or emergency repairs, this 2-piece set helps extend the life of your pump and maintain optimal oxygenation in aquaculture or pond systems.

Key Features:

• Includes 2 replacement diaphragms – one complete set
• Compatible with SUNSUN HJB 280 and HJB 550 air pumps
• Made from high-quality synthetic rubber for durability
• Restores air pressure and reduces noise
• Easy to install – no special tools required

Applications:

Perfect for aquaculture tanks, biofloc systems, koi ponds, and any setup using the SUNSUN HJB 280 or 550 air pump. Recommended for preventive maintenance every 12–18 months depending on usage.