Kohler Toilet Fill Valve Metal Plastic Quiet Fill

Description

Product Overview

The Kohler GP1138930 fill valve is engineered for Class 5 Kohler toilets, delivering a seamless and silent tank refill. Constructed from a blend of corrosion‑resistant metal and high‑impact plastic, the valve ensures long‑term durability while maintaining a sleek white exterior. Key specifications include a compact 13 × 3.5 × 3 inch footprint, 0.88‑inch inlet and outlet connections, and two adjustable fill‑rate inserts that let you balance performance with water conservation. The package contains the valve, inserts, fill hose, and all necessary assembly hardware, eliminating the need for additional purchases.

Usage

Designed for residential bathrooms, this valve excels in high‑traffic homes, guest suites, and eco‑friendly renovations. Its Silent Fill technology reduces noise during the refill cycle, making it perfect for master bathrooms adjacent to sleeping areas. The adjustable inserts allow users to customize flow rates for older or newer toilet models, ensuring optimal flushing power while meeting local water‑saving regulations.

Why Choose Us

Kohler’s reputation for quality plumbing solutions backs this fill valve, which meets OEM specifications and carries the trusted Kohler brand guarantee. The valve’s metal‑plastic hybrid construction resists rust and wear, extending service life beyond standard plastic‑only alternatives. Each unit undergoes rigorous testing for silent operation, leak‑free performance, and precise flow control, providing peace of mind for homeowners and installers alike.

Key Features

• Silent Fill Technology delivers a quiet tank refill, reducing bathroom noise.
• Adjustable flow inserts let you fine‑tune water usage for efficiency.
• Durable metal and plastic construction resists corrosion and wear.
• Easy DIY installation with all necessary hardware included.
• Compatible with Kohler Class 5 toilets; verify shank color for exact fit.

FAQ

Is this valve compatible with all Kohler toilets?

The valve is designed for Kohler Class 5 models. Verify the shank color—use this part for grey shanks; for black shanks, select part GP1083167.

How do I adjust the water flow?

Insert the provided flow‑rate inserts into the valve body. Choose the insert that matches your desired refill speed; tighter inserts reduce flow, while larger ones increase it.

Can I clean the valve without damaging it?

Yes. Use a soft cloth and mild soap. Avoid abrasive brushes or scouring pads, as they can scratch the finish.

What is the warranty on this product?

Kohler offers a limited one‑year warranty covering defects in materials and workmanship.

Do I need any tools for installation?

Only basic hand tools such as a wrench and screwdriver are required. All mounting hardware is included in the package.