I have the filter number40691001. f7. i live in the usa what is the right replacement filter for this? because it looks like that is only in the uk

Your filter is producing magnesium-enriched water and is intended to process approx.100 gallons of water. It seems you should be able to use other grohe blue filters of S, M, L sizes, including 40412001 (that’s large one). There is one with active carbon, too, but it did not work for us. Your filter heads should fit the replacement, and unless something changes you won’t need any adaptor.

40575001 3000L do you have this model ?

Hello, it does not look like this filter is available in the US. The product is only showing up on the UK website. It could have also been discontinued for the US. Other sellers may have it, but we do not.

Has anyone measured the difference in total dissolved solids (TDS) before and after filtration?

Hello, TDS does not always correlate to filtered or not filtered water. TDS measures total dissolved solids, including minerals that may be healthy to be in the water. TDS measures at the parts per million level, while some contaminants in water are bad at the parts per billion or parts per trillion level, where a TDS meter will not pick up on those levels of filtration. Determine WHAT you would like filtered out, and purchase a filter based on that. Low or no TDS does not always mean all contaminants are filtered out.

Has anyone measured the difference these filter(s) in total dissolved solids (TDS) before and after filtration?

This filter has worked great for us. No we have not measured it, but the different is noticeably different once the new filter is changed.

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💦 Sip in Style with Grohe Blue!

SLEEK STYLISH - Chrome finish adds a modern touch to your kitchen decor.
EASY INSTALLATION - Compatible with select GROHE faucets for a hassle-free upgrade.
ECO FRIENDLY CHOICE - Activated carbon filter reduces waste and promotes sustainability.
PURE HYDRATION ANYTIME - Enjoy up to 158.5 gallons of filtered water, perfect for your hydration needs.
TEMPERATURE VERSATILITY - Designed to function seamlessly in a range of 39°F to 104°F.

The Grohe Blue Filter S-Size (40404001) is a high-performance water filter designed to provide up to 158.5 gallons of clean, filtered water. With a sleek chrome finish and compatibility with select GROHE faucets, it operates efficiently without electricity, making it an eco-friendly choice for modern kitchens. Its temperature range of 39°F to 104°F ensures optimal performance for all your hydration needs.

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Manufacturer	GR61M
Part number	40404001
Item Weight	830 g
Product Dimensions	8.81 x 8.81 x 31.5 cm; 830 g
Item model number	40404001
Size	1 Count (Pack of 1)
Color	Chrome
Style	Hard Water Small
Finish	No Finish
Material	Activated carbon
Pattern	Single
Power source type	Non electric
Item Package Quantity	1
Number Of Pieces	1
Measurement System	Metric
Specific uses	Inside
Included components	Filter
Batteries Included?	No
Batteries Required?	No

GROHEBath/Kitchen Equipment, Chrome, 40404001

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