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The VALUE COLLECTION ZMSCVB75209 is a Dash 209 Viton (fluoroelastomer) O-ring designed for static and dynamic sealing applications across HVAC, plumbing, and industrial systems. It measures 0.688 inches inside diameter, 0.938 inches outside diameter, and 0.125 inches thick with a round cross section. The fluoroelastomer compound delivers a Shore A hardness of 75, a working temperature range of -15 to 400 degrees F, low compression set, and broad chemical compatibility. This O-ring is well suited for vacuum service and resists gas permeation, making it a dependable choice for high-temperature or chemically demanding sealing points. Sold in a package of 25.
This O-ring fits residential and commercial applications where petroleum-product exposure, elevated heat, or wide-spectrum chemical contact is a concern. Typical install scenarios include refrigerant service valves, hydraulic fittings, fuel-system connections, and high-temperature fluid line couplings. The Dash 209 dimensional standard ensures interchangeability wherever that designation is called out on equipment drawings or service manuals. Trade professionals in HVAC, plumbing, and industrial maintenance will find this size useful for routine seal replacement and preventive maintenance kits.
Designed as a standard Dash 209 O-ring replacement compatible with petroleum products and systems requiring fluoroelastomer seals rated to 400 degrees F.
Installation is typically performed by licensed HVAC technicians, plumbers, or maintenance mechanics. Always depressurize and isolate the line or component before removing the old seal. Inspect the mating groove for damage or contamination before seating the new O-ring. Lubricate with a compatible fluid or O-ring lubricant per the equipment manufacturer's guidance to prevent tearing during assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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