Description
The Grundfos STR2 twin impeller pumps are specifically made to improve the performance of low-pressure gravity feed shower systems by supplying more water flows at constant temperatures and pressures. A single-phase motor powers the pumps’ two pump ends, one for cold water and one for hot water. An integrated flow sensor allows the pumps to start automatically when needed.
Among the many cutting-edge design elements of the pumps are:
- A heavy-duty brass impeller and non-corrosive engineering plastic for STR2. Quiet operation is ensured by the low noise motor and anti-vibration feet.
- Completely automatic switching via a pressure switch and an integrated flow switch for STR2. The product comes with push-fit fittings and braided stainless steel hoses that can be used with either a 3/4″ or 1/2″ pipe connection.
- Particles in suspension are eliminated by integrated, easily cleaned inlet filters.
- For motor protection, a safety thermal cut-out that automatically resets.
- In order to overcome air pockets, the impeller design is regenerative.






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