Resideo - Honeywell Home ZD18X6TZ Automatic Rectangular DamperZD18X6TZ, a 24V Automatic Rectangular Damper 18x6 inch from Resideo Honeywell Home, delivers precise zoning control for Truezone systems. Engineered for reliable HVAC damper performance, it fits standard 18x6 inch ducts and supports efficient airflow management. Designed to enhance comfort and energy efficiency, this damper provides smooth operation, tight sealing, and dependable performance in modern home HVAC setups. Truezone compatible zoning

delivering dependable operation year after year

and compact dimensions (5-1/2 in W x 7-5/16 in D x 6-7/16 in H)

Single-speed operation with steady airflow

It’s used on water heaters and aligns with the AO Smith 9005931205 replacement part requirements

Whether upgrading an existing system or specifying new installations

3-inch footprint

dusty duct environments and long service life

enabling quick verification of temperatures

mounts in a 4" x 4" standard junction box

With a 4" diaphragm and full lockup

Programmable control with flexible timing and sequence options for industrial applications

Safety-first operation: ensures controlled shutdown when guarding is opened