Value Collection ZMSCS70FDA221 O-ring Dash 221 Silicone

Product Description

The VALUE COLLECTION ZMSCS70FDA221 is a silicone O-ring with a round cross section, supplied in a package of 25. It measures 1.421 inches inside diameter, 1.687 inches outside diameter, and 0.125 inches thick, conforming to Dash 221 sizing. Made from FDA-compliant red silicone with a Shore hardness of 70, this O-ring is engineered for applications that demand a wide service temperature range and reliable sealing performance. It is commonly specified by plumbers, HVAC technicians, and equipment maintenance professionals in food-grade or high-temperature environments where standard nitrile or EPDM materials fall short.

This O-ring is suited for residential and commercial applications that require broad temperature tolerance and resistance to dry heat, weathering, and ozone exposure. FDA-compliant material makes it appropriate for food processing equipment, potable water systems, and sanitary plumbing assemblies. Its limited oil resistance means it is best reserved for dry-heat, steam, or water-contact service rather than petroleum-fluid systems. The 25-piece package quantity supports service kit stocking and multi-unit repair jobs.

Key Features

• FDA-compliant red silicone material suitable for food-contact and potable water applications
• Wide service temperature range of -80 degrees F to 450 degrees F
• Shore hardness of 70 for a firm, reliable seal under compression
• Good weather and ozone resistance for outdoor or exposed installations
• Round cross section, Dash 221 standard sizing for straightforward replacement sourcing
• Sold in a 25-piece package to support stocking and multi-unit service calls

Compatibility

Designed as a standard Dash 221 O-ring replacement for equipment requiring FDA-compliant silicone seals in high-temperature or food-grade service applications.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or equipment maintenance technicians. Always depressurize and isolate the system before removing the existing O-ring. Inspect the groove for scoring or debris before seating the new O-ring. Avoid using petroleum-based lubricants with silicone O-rings in food-grade or potable water service; use an appropriate silicone-safe or NSF-listed lubricant if needed.