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.

After the toilet has been removed, you must remove the existing toilet bolts and clean all the old wax off the existing toilet flange. Decide how much height is needed in order for the bottom of the top flange to be parallel with the finished floor height. You should replace the existing flange if it is broken or rusted badly; the spacer kit will not work for this application. After confirming the existing flange is in good condition, install the new extra-long toilet bolts into the flange. You can use the gaskets that come with the kit to seal between multiple PVC spacers, but 100% silicone is recommended between the top of the existing flange and the bottom of the first spacer. This will ensure that all voided areas are water tight between the transition points. After the desired height is reached, the flat washers and 1/4" nuts are threaded onto the extra-long bolts. This will compress and hold the spacers in place. It is recommended that you try and secure the new spacer or spacers to the subfloor through the four holes molded into the spacers. You can now install a wax seal and finish the toilet installation. Never use one of the seals in place of the wax seal. THE TOILET WILL LEAK WHEN FLUSHED!