Grundfos - Watermill Amazon Universal STN - 4.0 Bar. Twin Impeller Negative Head 'Extra Quiet' Shower Pump - 230V - 42m Head

The Grundfos - Watermill Amazon Universal STN - 4.0 Bar. delivers a maximum head of 42m and runs at 230V. It is manufactured in Brass

The Grundfos Watermill Amazon single impeller heavy-duty positive head regenerative shower pump range is engineered for reliable performance, long service life, and consistent operation in demanding applications. Manufactured to a high standard, each Amazon pump is fitted with a robust brass impeller and is suitable for a wide range of domestic, commercial, and light industrial duties.

Designed with everyday usability in mind, these pumps deliver quiet operation and reduced vibration through anti-vibration feet fitted as standard. Long-life silicon carbide seals help promote dependable durability, while flexible stainless steel braided hoses are included for easier installation.

Key Product Features

• Single and twin impeller models available
• Continuously rated motor
• WRAS approved (1111063)
• Brass body and impeller
• Anti-vibration feet
• Supplied with stainless steel braided hoses
• Available in 1.5 to 4.0 Bar options

Please note - this pump is NOT suitable for use with combination boilers.

Grundfos acquired the Watermill Pumps brand in 2006, and the range has become well known for high-quality shower and bathing water pumps. These pumps are designed to offer low-noise, low-vibration operation while remaining competitively priced.

Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.