Larsen Supply Co. 120198 Stepped Cone Washer 3/8 Inch 6 Pack

Product Description

The LARSEN SUPPLY CO., INC. 120198 is a stepped cone washer designed to seal the connection between a ballcock valve and a 3/8 inch supply tube. This small but critical component creates a watertight compression seal at the base of the ballcock, preventing leaks where the fill valve meets the tank-to-supply connection. Sold in a pack of six, it is a standard replacement part used in toilet tank repair. Plumbers and plumbing service technicians keep these on hand for routine ballcock installations and fill valve replacements.

This stepped cone washer is suited for residential toilet tank applications where a ballcock-style fill valve connects to a 3/8 inch compression supply tube. It is a common part in standard toilet rough-in repairs and fill valve service calls. The carded packaging makes it convenient for counter stocking at supply houses or carrying in a service van. The pack-of-six quantity supports multi-unit jobs or repeated service visits.

Key Features

• Stepped cone profile seats securely against ballcock valve base for a leak-free compression seal
• Sized for 3/8 inch tube connection, matching common residential supply line sizing
• Pack of six units per package, suitable for stocking or multi-job use
• Lightweight at 0.22 pounds per package, easy to carry in standard service kits
• Sold as individual unit (EA) with carded retail packaging

Compatibility

Designed as an OEM-style replacement stepped cone washer for use with ballcock fill valves connecting to 3/8 inch compression supply tubes in residential toilet tank assemblies.

Installation Notes

Installation is performed by licensed plumbers or experienced plumbing technicians. Before replacing the washer, shut off the water supply at the angle stop valve below the toilet tank and flush to drain residual water. Seat the stepped cone washer firmly onto the ballcock shank before threading the supply nut to avoid cross-threading or misalignment. Follow applicable IPC and local plumbing code requirements for toilet supply connections.