1. Introduction
This instruction manual provides detailed guidance for the installation, operation, and maintenance of your new Gerber D404058 Parma Single Handle Pull-Out Kitchen Faucet. Please read this manual thoroughly before beginning installation or use to ensure proper function and longevity of your product. Retain this manual for future reference.

Image: The Gerber D404058 Parma Single Handle Pull-Out Kitchen Faucet in Chrome.
2. Safety Information
Always observe the following safety precautions during installation and use:
- Read all instructions completely before installation.
- Ensure all local plumbing and building codes are met.
- Shut off the main water supply before beginning any work.
- Wear appropriate personal protective equipment, such as safety glasses.
- If you are unsure about any part of the installation, consult a qualified plumber.
- Do not use harsh chemicals or abrasive cleaners on the faucet finish.
3. Package Contents
Verify that all components are present before beginning installation:
- Gerber D404058 Parma Single Handle Pull-Out Kitchen Faucet
- Mounting Hardware
- Hot and Cold Water Supply Lines
- Spray Hose with Quick Connect
- Hose Weight
- Installation Manual (this document)
4. Tools Required (Not Included)
The following tools are typically required for installation:
- Adjustable Wrench
- Phillips Head Screwdriver
- Basin Wrench (optional, for tight spaces)
- Plumber's Putty or Silicone Sealant
- Flashlight
- Bucket
- Teflon Tape
5. Installation Instructions
Follow these steps carefully for proper installation:
5.1. Pre-Installation
- Shut off the main water supply to the kitchen sink.
- Clear the area under the sink for easy access.
- Remove any existing faucet if applicable. Clean the mounting surface thoroughly.
5.2. Faucet Mounting
- Apply a thin bead of plumber's putty or silicone sealant around the base of the faucet.
- Insert the faucet body into the mounting hole on the sink or countertop.
- From underneath the sink, secure the faucet using the provided mounting washer and nut. Tighten firmly but do not overtighten.
5.3. Water Supply Connections
- Connect the hot and cold water supply lines from the faucet to the corresponding hot and cold water supply valves. Use Teflon tape on threaded connections for a watertight seal.
- Tighten connections with an adjustable wrench. Do not overtighten.
5.4. Spray Hose and Weight Installation
- Connect the pull-out spray hose to the quick connect fitting extending from the faucet body underneath the sink. Ensure it clicks securely into place.

Image: Illustration of the quick connect mechanism for easy hose attachment.
- Attach the hose weight to the lowest point of the pull-out hose, ensuring it does not interfere with other plumbing or the sink basin. This weight assists with the SnapBack retraction.

Image: Detail of the grip lock feature ensuring secure hose retraction.
5.5. Testing
- Slowly turn on the main water supply.
- Check all connections for leaks. Tighten any leaking connections as needed.
- Turn on the faucet and allow water to run for a few minutes to flush out any debris.
- Check the pull-out spray head and retraction for smooth operation.
6. Operation
Your Gerber D404058 faucet is designed for ease of use:
6.1. Water Flow and Temperature Control
- The single handle controls both water flow and temperature.
- Lift the handle to increase water flow. Push down to decrease flow and turn off.
- Move the handle to the left for hot water and to the right for cold water.
6.2. Pull-Out Spray Head
- Grasp the spray head and pull it out from the spout. The hose extends for increased reach.
- To retract, simply guide the spray head back into the spout. The SnapBack retraction system will assist in returning it to its docked position.
6.3. Spray Functions
- The spray head features two functions: an aerated stream and a powerful spray.
- Press the button on the spray head to switch between these two modes.

Image: Close-up of the spray function from the pull-out head.
7. Maintenance
Proper care will ensure the lasting beauty and performance of your faucet:
7.1. Cleaning the Faucet Finish
- Clean the faucet regularly with a soft cloth and mild soap.
- Rinse thoroughly with warm water and dry with a soft cloth to prevent water spots.
- DO NOT use abrasive cleaners, harsh chemicals, ammonia-based cleaners, or polishing agents, as these can damage the finish.
7.2. Cleaning the Spray Head Aerator
- If water flow becomes restricted, the aerator in the spray head may be clogged.
- Unscrew the aerator from the spray head.
- Rinse out any debris or mineral deposits. A soft brush can be used if necessary.
- Reattach the aerator, ensuring it is securely tightened.
7.3. Checking Connections
- Periodically check all water connections under the sink for any signs of leaks. Tighten gently if necessary.
8. Troubleshooting
Refer to this section for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Low water flow | Clogged aerator; partially closed shut-off valve; kinked supply line. | Clean aerator (see Maintenance); ensure shut-off valves are fully open; check supply lines for kinks. |
| Leaks at connections | Loose connections; worn washers/O-rings. | Tighten connections (do not overtighten); replace washers/O-rings if damaged. |
| Spray head does not retract fully | Hose weight improperly positioned or obstructed; debris in hose path. | Adjust hose weight to the lowest point; clear any obstructions under the sink; ensure hose moves freely. |
| Water temperature inconsistent | Water heater issues; cross-flow in plumbing. | Consult a plumber or water heater technician. |
9. Specifications
Key technical details for the Gerber D404058 Parma Faucet:
| Feature | Detail |
|---|---|
| Brand | Gerber |
| Model Number | D404058 |
| Finish Type | Chrome |
| Mounting Type | Deck Mount (1-hole) |
| Number of Handles | 1 |
| Maximum Flow Rate | 1.75 Gallons Per Minute (GPM) |
| Spout Height | 13-1/2 inches |
| Spout Length | 9 inches |
| Item Weight | 6.13 Pounds |
| Product Dimensions | 9 x 2.5 x 13.5 inches |
| Handle Material | Brass, Ceramic |
| Valve Type | Ceramic Disc Valve |
10. Warranty Information
This Gerber D404058 Parma Single Handle Pull-Out Kitchen Faucet is backed by a Limited Lifetime Warranty against defects in materials and manufacturing. For specific terms and conditions, please refer to the warranty documentation included with your purchase or visit the official Gerber website.
11. Customer Support
If you have any questions, require technical assistance, or need to order replacement parts, please contact Gerber customer service. Contact information can typically be found on the Gerber website or on the product packaging.
For additional resources and product information, visit the official Gerber website: www.gerberonline.com