The shelf life on the mineral oil used in liquid smoke is indefinite.

The Sink Hole Cover will not achieve a water tight seal on its own, and an approved silicone product will have to be applied in between the sink surface and the Sink Hole Cover. 

The WMOB and IMOB are made of a High Impact Polystyrene.

Air Admittance Valves open automatically to admit air into the drainage system when wastewater flows and negative pressure develops, equalizing pressure and supporting proper drainage. When not in use, the valve closes to block sewer gases from escaping into occupied spaces.

Ice maker outlet boxes are recessed plumbing boxes that terminate the water supply line for refrigerators with ice makers. They provide a code-compliant, accessible connection point that helps reduce the risk of leaks behind appliances.

Washing machine outlet boxes are recessed plumbing boxes that serve as the termination point for hot and cold water supply lines and the drain connection for a washing machine.