Description
The Armstrong Fluid Technology AS1270-259 Cover Gasket O-Ring is engineered to deliver a durable, leak-free seal for model SG-55 and SG-65 suction diffusers. Manufactured from premium EPDM material, this O-ring offers outstanding resistance to heat, ozone, and a wide range of chemicals — making it the dependable choice for critical fluid system applications.
Designed to exact dimensional tolerances, this gasket ensures a precise, secure fit that protects pumps and valves from leaks, system failures, and costly unplanned downtime. Whether used in industrial, commercial, or mechanical HVAC environments, this replacement O-ring maintains efficient operations and extends the service life of your equipment.
Product Highlights
- Purpose-built for Armstrong SG-55 and SG-65 suction diffusers
- EPDM construction provides superior resistance to heat, ozone, and chemicals
- Precision-dimensioned for a leak-free, reliable seal
- Prevents system failures and reduces costly maintenance downtime
- Ideal for demanding industrial and commercial fluid system environments
Technical Specifications
- Material: EPDM
- Inner Diameter: 6.234 inches
- Cross-Section Diameter: 0.139 inches
- MPN: AS1270-259
- Compatible Models: SG-55, SG-65 Suction Diffusers







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