NSF undercounter water filter with direct connection to the tap | OASIS MK-99

OASIS MK-99 – 2-Stage Under-Sink Water Filter, 0.5 Micron

1. Stage 1 – 0.5 Micron Pre-Filtration: Captures particles, sediment, sand, rust, and turbidity with exceptional precision, improving water clarity from the very first stage.
2. Stage 2 – Lead, Chlorine & Contaminant Removal: Certified by IAPMO R&T to NSF/ANSI 42 (chlorine, taste, odor) & NSF/ANSI 53 (lead, cysts, VOCs).

What's Included in the Box

• 1x OASIS MK-99 Filter Unit – 2-stage, for under-sink installation
• 2x Metal Hoses – For inlet & outlet connection
• Housing Wrench – For easy tightening and filter changes
• Supply Connection Adapter – For adaptation in case the water supply has a different size, enabling the connection
• Teflon Tape – For a leak-free, watertight connection
• Mounting Screws – For securing the unit
• Manual – Detailed installation & usage instructions

Key Features

• 0.5 Micron Filtration Precision: Captures particles and sediment with exceptional precision
• Lead & Chlorine Removal: Certified effectiveness to NSF/ANSI 42 & 53
• 2 Filtration Stages: Complete protection in one compact system
• 1/2" IN-OUT Connection: Easy installation under the sink, without complex modifications
• Complete Kit: All the necessary connection fittings are included in the package
• Easy Filter Replacement: Unscrew the housing from the base and change the filter without tools, in seconds

Filter Replacement Frequency

Recommended filter change: Every 6 months, depending on water quality and usage. If you notice reduced flow or a change in the taste of the water, replace it sooner.

Technical Specifications

Why Choose the OASIS MK-99?

• Certified Effectiveness: IAPMO R&T certification to NSF/ANSI 42 & 53 for removal of chlorine, particulates, lead, cysts & VOCs
• Safety for Your Family: Cleaner water straight from the tap, free of hazardous substances
• Compact Design: Fits comfortably under the sink, without taking up counter space
• Easy Installation: All the necessary fittings (hoses, adapter, teflon tape, screws, wrench) are included
• Easy Replacement: Simply unscrew the housing from the base to change the filter, no tools or technical help needed
• Savings & Sustainability: Reduce your use of bottled water and the cost at home

Important Notice About Water Pressure

⚠️ Caution: If you live on the 1st floor or lower (ground floor, basement), water pressure may be very high. The use of a pressure reducer is strongly recommended to prevent leaks and damage to the filtration system. The ideal operating pressure is 2-4 bar. Pressure above 6 bar may cause leaks.

Installation Instructions

1. Shut off the water supply: Turn off the main supply under the sink before starting the installation.
2. Inlet connection (IN): If the water supply is a different size, use the connection adapter to adjust it. Use the teflon tape for a watertight seal and connect the first metal hose from the main water supply to the inlet (IN) of the MK-99 unit.
3. Outlet connection (OUT): Connect the second metal hose from the outlet (OUT) of the unit to the tap or point of use.
4. Mounting: Use the included screws to secure the unit to a stable point under the sink.
5. Leak check: Turn on the water supply and check all connections. Use the housing wrench to tighten any points where a leak appears.
6. Filter flush: Let the water run for 5-10 minutes before first use to flush the filter.

Frequently Asked Questions – FAQ

Certifications & Approvals

• IAPMO R&T – Independent certification body
• NSF/ANSI 42 – Material safety & aesthetic effects (chlorine, taste, odor, Class I particulates)
• NSF/ANSI 53 – Health effects (lead, cysts, VOCs)

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