Grundfos Amazon STN Brass Twin Impeller Negative Head Shower Pump 4.0 bar

A heavy-duty twin shower pump, with brass impellers and housing for improved durability and high performance. With the Grundfos STN-4.0 B, you’ll boost both hot and cold water to single showers and multiple outlets around the bathroom or house.
Continuously rated as a regenerative pump, it’s well equipped to overcome air pockets and is a perfect choice when the plumbing route includes multiple bends or elbows. Supplied with a flexible stainless steel connection hose, the pump also features anti-vibration feet and long-life silicon carbide seals – this keeps the operating noise to a minimum.

• Boosts both hot and cold water to a single shower
• Can be used for multiple outlets around the house
• Brass impellers and pump housing for durability
• Regenerative impeller design to overcome air pockets
• Low noise – quiet induction motor and minimal turbulence pump head
• Built-in thermal protection – motor stops if it overheats
• Long-life carbide seals for added reliability
• 22mm push-fit connections for inlet and outlet
• Stainless steel flexible connection hose
• Anti-vibration feet for minimum operating noise
• Suitable for both positive and negative head systems
• Continuously rated and WRAS-approved