# Pitec Untertisch Systeme > PiTec undersink water filters for your kitchen: discreetly installed, powerful, easy installation. Clean water straight from the tap. Discover now. *Under-sink water filter systems* ## Two systems, one goal: the best water All MAUNAWAI under-sink systems are based on our Pi technology and deliver water of spring-water quality. Which one is best for you depends on the space you have available and your requirements. **PiTec 2-in-1** — Compact and powerful The full range of MAUNAWAI technology in a single module. Minimal space requirements, maximum water quality. Flow rate: 8 L/min All in one module Minimal space requirements Perfect for small kitchens Consistent water quality **PiTec Professional** — The modular system Modular design with separate filter units. Maximum flexibility for kitchens, offices, hotels and the catering industry. ## What happens to your water? Our under-sink systems work just like nature: just as spring water makes its way through layers of rock, your tap water passes through several stages of filtration. - **Pre-filtration**: The pre-filter removes coarse particles such as sand, rust and sediment. This protects the subsequent filter stages. - **Intensive filtration**: Chlorine, pesticides, hormones, microplastics, PFAS and numerous other contaminants are bound — whilst valuable minerals are retained. - **Chemical-free limescale protection**: Using modern seed crystallisation, limescale is altered so that it no longer builds up. No chemicals, no salts. - **Pi Technology: Regeneration**: 21 different types of mineral ceramics revitalise your water — much like in nature, when spring water flows through layers of rock. ## Why an under-sink water filter is worth it for you Six good reasons to enjoy spring-water quality straight from your tap. - **Invisible and space-saving**: The entire filter system disappears under your sink. The worktop remains completely clear — all you can see is your tap. - **Spring water quality at the touch of a button**: Just turn on the tap. No waiting, no refilling. Fresh, purified water — for drinking, cooking, and making tea and coffee. - **Valuable minerals are preserved**: Unlike reverse osmosis systems, MAUNAWAI doesn’t remove everything. We filter out the harmful substances and preserve the beneficial ones — just as nature has shown us how to do. - **Sustainable and resource-efficient**: Long-lasting filter cartridges, no electricity, no chemicals. And you don’t have to lug around water bottles. - **A taste you can really savour**: Tea unfolds its full flavour, coffee becomes smoother, and plain water becomes a delight. You can taste the difference straight away. - **Perfect for rented flats**: The installation leaves no trace. When you move house, you can simply take your system with you — without leaving a trace. ## What sets our Pi technology apart Most water filters remove contaminants — and that’s where it ends. MAUNAWAI goes further: our Pi technology doesn’t just filter; it regenerates. ## Tested, tried and proven - **99.2%**: Reduction of heavy metals - **Since 1996**: PI technology in Europe - **12 months**: Independent long-term test - **Made in the EU**: Development & Production > Research shows that MAUNAWAI filter systems not only reliably remove pollutants, but also improve the water’s biophysical properties. > — Dr Walter Medinger, IIREC Institute ## Your spring water in just a few steps You don’t need a plumber or any special tools. The installation is designed so that you can do it yourself in just a few minutes. - **Prepare the water connection**: Open the angle valve under the sink and connect the flexible hose. - **Fit the filter system**: Attach the unit to the wall beneath the base units or place it on the floor. - **Install a tap**: Optional: Separate filtered water tap for the worktop. - **Rinse and enjoy**: Leave it to run for five minutes – and you're done. > **Filter replacement**: Every six to > twelve months, depending on water consumption. Simply replace the cartridge. No tools required; takes less than a minute. MAUNAWAI is a family-run business with roots dating back to 1996. It was then that Maria Knoch first brought Japanese Pi technology to Europe. Today, MAUNAWAI develops and manufactures all its filter systems within the EU, upholding the same standards as on day one. ## Frequently Asked Questions (FAQ) ### How often does the filter need to be changed? Every six to twelve months, depending on usage and water quality. ### Is installation complicated? No – our filter systems are designed for easy DIY installation. Of course, a plumber can help if you prefer. ### Does the filter system remove limescale from the water? Our filters optimise the water structure, significantly reducing limescale deposits. However, only water softeners can provide completely limescale-free water. ### How does an under-sink system differ from tabletop filters? Under-sink systems filter the water directly at the tap, offer higher filtration performance and require less frequent filter changes than tabletop filters. They are particularly convenient for everyday use because you simply turn on the tap – that’s it. ### Can I use the under-sink system in a rented flat? Yes, without any problems. Installation leaves no residue. When you move house, you simply take the filter system with you to your new home. --- [https://www.maunawai.com/gb/en/cat/pitec-untertisch-systeme](https://www.maunawai.com/gb/en/cat/pitec-untertisch-systeme)