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The LARSEN SUPPLY CO., INC. 0-3031 is a plastic single lever adjusting ring designed as a replacement component for Delta lavatory and sink faucets. This adjusting ring controls the range of motion for single-lever faucet handles, maintaining proper handle travel and temperature stop settings. It is sold as one set per bag and is intended for installation by licensed plumbers or experienced service technicians performing faucet cartridge or handle repairs. The plastic construction keeps weight minimal at 0.16 pounds and allows for straightforward fitment in tight faucet body clearances.
This adjusting ring is used in residential lavatory and sink applications where a Delta single-lever faucet requires handle adjustment or repair. It is a direct service replacement part, typically installed during faucet rebuilds, handle repairs, or when the original ring becomes worn, cracked, or lost during routine service. The part is sold individually as one set and is packaged with a quantity of six units per package for trade restocking purposes.
Designed as a replacement for Delta single-lever lavatory and sink faucets referencing OEM part RP250 MB.
Installation is performed by a licensed plumber or qualified service technician. Shut off the water supply valves under the sink before disassembling the faucet handle or cartridge assembly. Handle components should be removed carefully to avoid damaging the valve seat or cartridge. Follow the faucet manufacturer's service documentation for proper adjusting ring seating and handle reassembly.
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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