The Neoperl PCA "Frog" flow regulator is a compact inline adapter for standard threaded shower arms, designed to reduce water consumption without compromising spray comfort. It fits seamlessly into existing bathroom installations and requires no tools or permanent modifications.
Reduces flow to approximately 5 litres per minute, cutting water usage significantly per shower
A-rated energy efficiency class lowers both water heating costs and environmental impact
Universal thread compatibility with M22 x 1 and M24 x 1 fittings covers the majority of European shower arms
Durable plastic internal components resist corrosion and limescale buildup in hard-water areas
What sets the Neoperl PCA "Frog" apart
Unlike fixed-flow showerheads, the PCA "Frog" is an inline regulator that sits between the shower arm and the handset or head, preserving the original fixture while adding flow control. Its neutral design and small footprint make it virtually invisible once installed.
Ideal for...
Households looking to reduce monthly water and heating bills without replacing existing shower equipment. Particularly suited to rental bathrooms, holiday homes, and multi-occupancy dwellings where low-flow compliance or cost savings are a priority.
Application of the Neoperl PCA "Frog"
Screw the regulator onto the shower arm thread (M22 x 1 or M24 x 1)
Attach the shower handset or head to the regulator's outlet thread
Adjust flow by turning the regulator collar to the desired setting
Remove and clean the filter screen periodically to maintain consistent flow
Neoperl is a Swiss manufacturer specialising in water-saving bathroom fittings and shower accessories. The PCA "Frog" flow regulator exemplifies the brand's focus on simple, effective water reduction solutions for standard threaded installations.
An inline shower regulator that reduces water flow to approximately 5 litres per minute, fitting onto standard M22 x 1 or M24 x 1 threaded shower arms without tools or permanent modifications.
It fits M22 x 1 and M24 x 1 threaded connections, which cover the majority of standard European shower arms. Check the thread size on your existing arm before purchasing.
Energy efficiency class A, flow rate approximately 5 litres per minute, connection threads M22 x 1 and M24 x 1, internal material plastic, weight 34 grams.
One Neoperl PCA "Frog" flow regulator. No additional fittings or adapters are included.
Unscrew the regulator periodically and rinse the filter screen under running water to remove limescale and sediment. Reinstall once dry for consistent flow performance.
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