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The SLOAN 980108 is a set of six H552 lock rings designed for use with Sloan flushometer valves. Lock rings secure the spud coupling and body connections on flushometer assemblies, maintaining a watertight seal under repeated flush cycles. These rings are OEM-specified components installed by licensed plumbers and commercial plumbing technicians during new installation, routine maintenance, or repair of flush valve systems. The pack-of-six quantity supports service calls and contractor stocking needs.
Lock rings in this configuration are used in commercial and institutional restroom applications where Sloan flushometer valves are installed on water closets and urinals. They are a standard service part replaced during valve rebuilds or when seal integrity is compromised. The H552 designation identifies the specific ring geometry for compatible Sloan valve bodies.
Designed as an OEM-style replacement lock ring for Sloan flushometer valve assemblies requiring H552 lock rings.
Installation should be performed by a licensed plumber following applicable IPC and local plumbing code requirements. Shut off the water supply to the flushometer and relieve line pressure before disassembling the valve body. Use the appropriate spud wrench and avoid overtightening, which can damage the ring or valve body threads. Inspect all adjacent seals and gaskets while the valve is disassembled.
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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