They filter fine particles from the vacuumed air as it exits the vacuum's exhaust port

Bradley 115-111 Spray Head Replacement Part

Vandal-resistant bubblers feature a chrome-plated integral hood guard to prevent contamination from other users

The flexible tube forms four shower legs

Red Lion NPN Output Type, Servo Mount Encoder,Shaft Dia., 1000 Pulses per Revolution - ZSD1000A DesignerSeries They filter fine particles fromServo Mount Encoder; Output Type: NPN; Power Supply: 4. 75 28 V DC; Shaft Type: Stainless; Shaft Dia.: 1 4 in; Pulses per Revolution: 1000; Starting Torque: 0. 4 oz in; Max. RPM: 8,000 RPM; Cable Length: 3 ft; Cable Connection: Bare Wire; Cable Entry: 5 Wire; Standards: UL CE; Includes: Quadrature Output