DN15 Flow Limiting Water Saving Disc for Shower & Faucet

Save Water Effortlessly with a Built-In Flow Limiting Disc

The DN15 Constant Flow Water Saving Sheet is a compact, easy-to-install plastic insert designed to regulate water flow in shower heads, top-spray fixtures, and standard faucets. By maintaining a consistent, controlled flow rate, this small disc can make a noticeable difference in your household water consumption — all without any tools or complex plumbing work.

Whether you're upgrading your shower head, bathroom faucet, or kitchen tap, this flow-limiting aerator insert fits neatly inside DN15 (1/2") connections and works quietly behind the scenes to keep your water usage in check.

Key Features

• Constant Flow Technology: Maintains a steady, pre-set flow rate regardless of water pressure fluctuations, ensuring consistent performance.
• Water-Saving Design: Reduces unnecessary water waste without compromising your shower or faucet experience.
• Built-In Check Valve: Prevents backflow, helping to protect your plumbing fixtures and maintain clean water delivery.
• Universal DN15 Compatibility: Fits standard 1/2" shower heads, top-spray nozzles, and faucet aerators — a versatile solution for multiple fixtures around the home.
• Durable Plastic Construction: Lightweight, corrosion-resistant, and built to withstand everyday water exposure.
• Tool-Free Installation: Simply insert the disc into your existing fixture — no special tools or plumbing expertise required.
• Compact & Discreet: Fits inside the fixture housing so it remains hidden and does not affect the appearance of your shower head or faucet.

Specifications

• Material: Plastic
• Type: Flow Limiting Aerator / Check Valve Insert
• Connection Size: DN15 (1/2")
• Compatible With: Shower heads, top-spray fixtures, faucet aerators
• Quantity: 1 piece
• Country of Origin: Made in China

How It Works

The flow-limiting disc is placed inside the water inlet of your shower head or faucet. As water passes through, the disc restricts and stabilises the flow to a constant rate, regardless of whether your home's water pressure is high or low. The integrated check valve further ensures water only flows in the correct direction, adding an extra layer of protection to your plumbing system.

Ideal For

• Homeowners looking to reduce monthly water bills
• Eco-conscious households aiming to lower water consumption
• Properties with high water pressure that causes excessive flow
• Rental properties and holiday homes where water efficiency matters

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Frequently Asked Questions

Q: What size fitting does this water saving disc fit?

A: This flow limiting disc is designed for DN15 (1/2 inch) connections, which are the most common standard size for household shower heads, top-spray fixtures, and faucet aerators.

Q: Will this water saver disc reduce my water pressure noticeably?

A: The disc is engineered to maintain a constant flow rate — not simply restrict pressure. In most cases, you will experience a smooth, steady stream without a dramatic reduction in perceived shower performance, while still saving significant water over time.

Q: Does the built-in check valve serve a specific purpose?

A: Yes — the integrated check valve prevents water from flowing backwards through your fixture. This is especially useful in mixed hot/cold plumbing systems, helping to prevent cross-contamination between hot and cold water lines.

Q: Is this disc easy to install without a plumber?

A: Absolutely. Simply unscrew your shower head or faucet aerator, place the disc into the inlet opening, and reassemble. No specialist tools or plumbing knowledge are required.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.