Deflecto 4-Inch Metal Spring Tension Dryer Vent Clamp MSC4100

Bulk 4-inch metal spring-tension clamp for securing dryer duct/round duct connections. The spring-style steel clamp adjusts to 4-inch diameter duct and is installed or removed with pliers.

Is This the Right Part?

Common Symptoms

• Vent hose slips off the dryer outlet or wall duct
• Visible gap or air leakage at a 4-inch duct joint
• Lint or warm air escaping around the clamped connection
• Dryer airflow may be reduced if the duct separates or becomes loose

Check Before Replacing

• With the dryer turned off and cool, visually inspect the clamp and duct joint for separation, gaps, or deformation.
• Gently tug the vent hose at the connection to check whether it remains securely seated; do not force the duct or clamp.
• Check that the clamp is positioned over the overlapping portion of the vent hose and rigid duct, rather than over an unsupported edge.
• If airflow or drying performance is poor, inspect the entire vent path for disconnection or restriction instead of assuming the clamp is defective.

Pro Tip

Part Details

Key Features

• Metal spring-tension construction
• Fits 4-inch round duct
• Can be installed and removed with pliers
• Bulk pack quantity of 100
• Silver metal/steel finish

Installation Notes

• Disconnect power before working around the dryer vent; allow the dryer and vent components to cool.
• Use the clamp only on a properly fitted 4-inch round duct connection.
• Position the clamp over the overlapping duct joint and confirm it is evenly seated before operating the dryer.
• Do not use screws or other fasteners that protrude into the vent interior, because they can catch lint.
• After installation, gently verify that the duct connection is secure and that the vent is not kinked or crushed.