User-friendly operation - Before first use, read the operating manual carefully. Release air and foam pressure before initial use and during maintenance. Release foam pressure from the gun after every use to prevent leaks and keep the gun in good condition. One-handed control - The foam gun allows you to adjust the foam flow rate and dispense with one hand, making your work more efficient. Non-stick PTFE coating - Features a nonstick PTFE coating to help prevent foam from sticking and to simplify cleaning and handling. Ergonomic design - Designed for long use with an ergonomic handle. The distance between the handle and the adjustment knob is configured for comfortable one-handed operation. Practical applications - Ideal for sealing gaps around doors and windows, insulating joints in walls, and filling voids around pipes or electrical cables to improve comfort and energy efficiency.