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Many terms, such as escutcheon, have a specific meaning in plumbing. Look up your term here for a helpful boost in the right direction.

O-ring
A ring of synthetic rubber or other material used as a gasket.

 

Obscure
Patterned shower door glass with a clouded element lending more privacy to the bather. The irregular pattern of the glass conceals waterspots and fingerprints.

 

Obscure

 

One-piece shower
Single unit showers for new construction or extensive remodeling. Their seamless one-piece design presents a surface that is easy to clean.

 

One-piece shower

 

One-piece toilet
Toilet design in which tank and bowl are cast as a single vitreous china fixture. Typically, one-piece toilets have a lower profile than two-piece toilets. Kohler's one-piece toilets offer some of the lowest profiles in the industry.

 

One-piece toilet

 

Overflow ell
On a bath drain, the elbow fitting that attaches to the bath wall to provide overflow protection.

 

Overflow hood
On a bath drain, the decorative hood concealing the overflow ell.

 

Overflow tube
The vertical tube inside a toilet tank (usually part of the flush valve), which directs water into the bowl in the case of ballcock malfunctions. If the ballcock does not shut off properly, water will drain through the overflow tube into the bowl, and flow down the waste drain lines. Also refers to the portion of a bath drain between the overflow and the drain tee.