Danco 35706B Buna-n O-ring 1-15/16 X 2-1/8 in Faucet Repair

Product Description

The DANCO 35706B is a Buna-N rubber O-ring sized at 1-15/16 inches inner dimension by 2-1/8 inches outer dimension, used to create a watertight seal in faucets and plumbing assemblies. Molded from Buna-N (nitrile) rubber, it resists abrasion and water swell — two common failure modes that cause leaks at valve seats, stems, and body connections. Plumbers and experienced DIYers reach for this O-ring when repairing dripping faucets or refreshing worn valve seals. It ships one ring per bag and is black in color.

This O-ring is suited for residential and light commercial faucet repair applications. It fits valve stems, cartridge seats, and body ports where a seal of this diameter range is required. It is also used in general plumbing repair scenarios beyond faucets, wherever a Buna-N O-ring of this size is called for. The material makes it appropriate for cold and warm water service lines.

Key Features

• Buna-N (nitrile) rubber construction resists abrasion and water swell
• Sized at 1-15/16 inches by 2-1/8 inches for precise fitment in matching grooves
• Black color for easy identification against light-colored valve components
• Sold individually, one O-ring per bag
• Suitable for faucet repair and general plumbing seal applications

Compatibility

Designed as a replacement O-ring for faucets and plumbing valves requiring a Buna-N seal measuring 1-15/16 inches by 2-1/8 inches. Verify groove dimensions before installation to confirm fit.

Installation Notes

A licensed plumber or qualified DIYer can install this O-ring using basic hand tools. Shut off the water supply and relieve line pressure before disassembling the faucet or valve. Lightly lubricate the O-ring with a plumber-grade silicone grease before seating it to prevent rolling or tearing during reassembly. Inspect the groove for nicks or corrosion that could compromise the seal before installing the new ring.

Technical Specifications

• Material: Buna-N (Nitrile) Rubber
• Inner Dimension: 1-15/16 inches
• Outer Dimension: 2-1/8 inches
• Color: Black
• Weight: 0.008 pounds
• Quantity per Package: 1
• UPC: 00037155357062

Standard Information

• Brand: DANCO
• Manufacturer Part Number: 35706B