DIFFUSER GASKET: CHALLANGER+PUMP 5 HP - 0-421-0

SKU: 0-421-0
Regular price $1.30

Available for pickup at

  • MT Pool Distributor Broward (9) in stock
  • MT Pool Distributor Corporate (15) in stock
  • MT Pool Distributor North (5) in stock
  • MT Pool Distributor South (3) in stock
In stock

The Pentair Challenger CH-Series Diffuser O-Ring Gasket is a critical component that pool service and construction contractors rely on for maintaining peak pump performance. This precision-engineered black rubber gasket ensures leak-free operation and optimal pressure maintenance in 5HP Challenger pumps, reducing costly callbacks and protecting your professional reputation.

Professional Service Benefits

This high-quality diffuser gasket eliminates common leak issues that lead to pump inefficiency and customer complaints. The durable black rubber construction withstands chemical exposure and temperature fluctuations, extending service intervals and reducing maintenance costs. Perfect fit engineering means faster installations and fewer warranty issues for your business.

Why Pool Contractors Choose MT Pools

MT Pools understands that reliable parts availability keeps your service operations running smoothly. Our superior customer service ensures you get the right parts quickly, while our wholesale pricing structure supports healthy profit margins on every service call and pump repair.

Frequently Asked Questions

What Pentair Challenger pumps does this O-ring fit?

This diffuser O-ring is compatible with Pentair Challenger High Flow 5HP pumps and Challenger High Head pumps. For Medium Head pumps, use alternative part #5002-13A.

Should I use lubricant when installing this gasket?

Yes, this O-ring is often used with Magic Lube O-ring Lubricant 630 for easier installation and improved seal performance.

How does this gasket improve pump efficiency?

The precision seal prevents air leaks and maintains optimal pressure, reducing energy consumption and extending pump life while eliminating performance issues.

Does MT Pools stock replacement parts for bulk orders?

Yes, MT Pools maintains reliable inventory for service contractors and offers bulk pricing for companies that service multiple Pentair Challenger installations.

Order Your Service Parts Today

Keep your service truck stocked with genuine Pentair replacement parts from MT Pools. Our fast shipping and expert technical support help you complete jobs efficiently and maintain customer satisfaction.

• 2-7/8" Inner Diameter with 1/8" Cross Section for precise fit
• High-quality black rubber construction resists chemicals and wear
• Compatible with Pentair Challenger High Flow 5HP pumps
• Fits Pentair Challenger High Head pump models
• Prevents leaks and maintains optimal pump pressure
• Reduces energy consumption and extends pump life
• Designed for professional service and installation
• Often paired with Magic Lube O-ring Lubricant 630
• Alternative to part #5002-13A for Medium Head pumps
• Essential component for pump efficiency optimization