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The SMITTY PAN SMPANSO16ST is a 16-inch aluminum water heater pan designed to catch and direct water from tank leaks or condensation before it causes floor or structural damage. Constructed from aluminum, this pan provides corrosion resistance in wet utility environments. The side drain port allows connection to a drain line, making water removal straightforward without lifting or repositioning the pan. It is a standard component installed beneath residential and light-commercial storage water heaters by plumbers during new installations or heater replacements.
This pan is suited for use under tank-style water heaters in mechanical rooms, utility closets, garages, and attics where code or best practice requires secondary water containment. The 16-inch diameter accommodates common residential water heater base sizes. The side drain configuration is preferred in installations where overhead or floor drain access is limited, allowing the drain line to exit horizontally to a nearby floor drain or standpipe.
Designed as an OEM-style replacement or new-installation pan for residential tank-style water heaters with a base diameter fitting within 16 inches.
Installation is performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC), which typically requires a drain pan and discharge line wherever a water heater is installed above a living space or finished area. Shut off the water supply and power or gas to the heater before repositioning the unit to place the pan. Connect the side drain port to an approved drain location using appropriate tubing or pipe — do not leave the drain port uncapped. Verify the pan sits level under the heater after installation to ensure proper drainage.
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