Enhanced operation toilet

Enhanced vacuum assisted toilet

Entertainment device and system

Environmentally controlled toilet

Evacuating system for water closet

Exhaust unit for a toilet bowl

Extendable flange apparatus and methods

Externally vented toilet

Fan muffler

Faucet for filling tanks

Faucet-like bidet attachment

Fill valve

Firestop stack fitting

Fixture for disposing of bodily waste having an...

Flapper flush valve

Flapper valve apparatus and method of use

Flapper valve with dual action arm

Flexible flange apparatus with a flexible membrane

Flexible sleeve for connection to a plumbing fixture

Floatable deodorant holder