Register fan
Regulator
Relief valve
Replaceable air filter
Resilient ring for fluid coupling
Retrofit louver for evaporative air coolers
Reverse osmosis water purifier
Reverse osmosis water purifier
Reversible baffle
Ridge construction for a greenhouse
Robot mounted spray gun
Roman oil fountain
Roof curb for supporting a ventilator
Roof edge ventilator
Roof edge ventilator
Roof exhauster
Roof pipe boot
Roof ridge ventilator
Roof ridge ventilator
Roof stack vent