OATEY 34171 20 in. Aluminum Water Heater Pans with 1 in.CPVC Adapter

Both. The 20 inch Oatey aluminum pan is rated for installation under gas or electric water heaters to catch leaks and condensate before they damage the floor. The aluminum body is why it works under gas units, where a plastic pan may not be accepted.

The Oatey 20 inch aluminum pan meets the requirements of the Southern Building Code. Local jurisdictions vary on whether they require a drain pan at all and on the drain line size and termination, so check with your inspector on the discharge routing. The pan itself is a code-recognized aluminum unit with a 1 inch CPVC drain connection.

Aluminum, like the Oatey 34171, is the one to use where the pan sits under a gas water heater or anywhere heat and long-term brittleness are a concern, and it holds its shape when a tank is dragged into place. Plastic pans are lighter and cheaper but can crack in cold garages and under tank edges. This one is .032 prime aluminum, 20 inches across, with a 1 inch CPVC drain adapter included.

No, the 1 inch CPVC adapter comes with the 34171 pan. What is not included is the drain piping itself, any solvent cement, and the hangers or supports for the run to the termination point. Order those with the pan so the install finishes in one trip.