Flow Restrictors for Faucet and Shower Waterways
Limit flow in faucet, shower, overhead-shower and water-heater inlet waterways. Choose washer-type, thin, insert-type or removable formats by connection and installation position.
Compare Uses and Structures
MC Washer-Type | Hose and Spray-Head Connections
MC Washer-Type | Hose and Spray-Head Connections
MC1900 / MC1901 serve shower joints, with a removal lug on MC1901. MC2100 serves pull-out spray-head inlets; MC2500 serves faucet bodies and G3/4 inlet connections.
Shower hose / spray head / faucet inlet
Connection flow restriction
Select by connection position, then decide whether regular removal is needed.
MA Thin | Faucet and Overhead-Shower Inlets
MA Thin | Faucet and Overhead-Shower Inlets
MA0800–MA1200 serve cartridge inlets, braided hoses and compact showers. MA1800 primarily serves G1/2 overhead inlets; MA1900 serves larger shower waterways.
Cartridge inlet / braided hose / overhead shower
Inlet flow control
Small faucet waterways and overhead inlets need different fits; target flow alone does not make models interchangeable.
MB Insert-Type | Handles and Inlet Pipes
MB Insert-Type | Handles and Inlet Pipes
MB1380 primarily serves water-heater and wall-hung boiler inlet pipes; MB1400 serves handles and tail connectors, MB1500 overhead inlets and shower pipes, and MB1600 / MB1640 internal pipe positions.
Water-heater inlet / shower connector / pipe bore
Internal flow restriction
Choose by bore and installation depth. Water-heater inlet applications refer to the water side.
H9 Removable | Low-Pressure Showers
H9 Removable | Low-Pressure Showers
HL1814H9 / HL1815H9 serve shower inlets requiring removable restriction in 14mm and 15mm waterways respectively.
Low-pressure shower / overhead-shower inlet
Removable flow restriction
Removing the restrictor may allow more flow but does not boost supply pressure.
What Guides the Choice
Installation position
Identify a connection, threaded inlet or internal cavity before selecting the format.
Service needs
Compare MC1901 for regular cleaning and H9 when the restriction needs to be removable.
Flow conditions
Specify flow at the intended pressure, then evaluate the selected model in the complete assembly.
Dimensional fit
Outside diameter is not pipe size. Check depth, retention and sealing against the drawing.
Start with the Restrictor Installation Position
Send a connection photo or cavity drawing, target flow, pressure and removal requirements. Include model and quantity if known.
MC Washer-Type | Hose and Spray-Head Connections
MA Thin | Faucet and Overhead-Shower Inlets