IDEAL FOR RENTERS OR SOLO USERS

1 Micron Filter

AD18

1 Micron Under-Sink Water Filter

Price range: €55.00 through €130.00

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Secure Payment

30-Day Money Back

Shipping

Free Delivery within Malta:

2-3 working days from the date of your order (if ordered Mon-Fri)

Returns

We hope you are happy with your purchase. However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, or an exchange. Please contact us at support@aqua.direct for further information.

30-Day Money Back Guarantee

Our promise
All our products come with a 30-Day Money Back Guarantee if you are not entirely satisfied with the quality of your mains water, once connected.

Enjoy complete peace of mind with your purchase, supported by our 1-year warranty and lifetime technical assistance.

If you receive a damaged or incorrect item, please contact support@aqua.direct with your order details and a photo of the issue — our team is ready to help.

Should your product develop a fault within the warranty period due to a manufacturing defect (excluding damage from misuse, accidental breakage or direct water supply), we will be happy to arrange a free return, provide a complimentary repair, or send a replacement at no extra cost.

SAVE UP TO 60%

WITH THE GOVERNMENT GRANT

We will email you the link to claim your grant upon purchase of your filter system. Eligible applicants will get a one-time grant of 60% OFF the purchase price to purify water at home.

Aquarius Direct filters fall under the ‘2025 Tap Water Scheme Grant’ on the Purchase of an Activated Carbon Filter issued by the government.

(Subject to a maximum grant of €100 and does not apply to replacement filter purchases)

Compact, Reliable Water Filtration

The AD18 is a single-stage water filter designed for households of one person. Compact yet powerful, it removes more than 99% of common contaminants, including chlorine, microplastics, and other harmful chemicals – dramatically improving the taste, clarity, and quality of your drinking water.

Perfect for under-sink spaces, the AD18 is quick to install and even easier to maintain. Our starter kit includes everything you need in one convenient kit.

What’s Inside: Single Stage Water Filter, Active Carbon Block 1 Micron

AQUARIUS DIRECT AD18 FILTER SYSTEM

For clean, fresh and safe mains drinking water.

Benefits of the AD18

Simple to replace – just unscrew the used filter and attach the new one.
Quick DIY installation under the sink or on the cupboard floor.
Easily connects to your mains water and sink tap.
Compact design – ideal for flats, smaller households, or where space is limited.
A cost-effective upgrade from water jug filters.

What the AD18 removes:

Chlorine, Taste & Odour, Chemical, THM Reduction, and More.

“Absolutely great service and products. This is our third time shopping from Aquarius Direct and we are very happy with the product and service. Definitely recommend.“

Suzy | May 2025

What's Included in our Starter Kit

Aquarius Filter & Head

Filter Tubing

Filter Attachments

Filter Install Guides

See the Specification (‘Specs’) tab for tubing and attachment sizing

Filters Tested in the USA, UK and Malta

Aquarius Direct filters are independently tested and certified to meet the highest safety and performance standards – including NSF in the United States, WRAS in the United Kingdom, and full approval in Malta.

Money Back Guarantee

Our promise
All our products come with a 30 Day Money Back Guarantee
if you are not entirely satisfied with the quality of your mains water, once connected.

Filter Dimensions

Width 65mm
Depth 80mm
Height 235mm

tubing and attachment sizing

What’s included:

1/4 x 1/2 female adapter
1/4 x 1/2 male adapter
2x 30cm length of 1/4 LDPE tube

Our filters are tested in Malta, USA & UK.

Technical information

AD18 – 1 micron carbon filter

Operational conditions

Flow rate: 2.25L/min or 0.5 GPM
Pressure: 2-5.5 Bar or 30-80 PSI
Temperature: 4-38°C
Capacity: 5,700 litres/16 litres per day
Flushing: 5 Minutes

Notice

Do not use with water that is micro-biologically unsafe or unknown quality without adequate disinfection before or after the system. From cold only mains water.
Replace cartridge when rated capacity (5,700 litres) is reached, or when flow becomes too slow.

Reviews

Frequently Asked Questions

How does the Aquarius Direct water filter work?

The Aquarius Direct filter is connected directly to the main cold-water supply, usually under the kitchen sink. It removes impurities to provide clean and great-tasting water straight from your tap.

Does the filter require electricity?

No, Aquarius Direct filters do not require electricity to operate.

Does the filter waste water?

No, our filters do not produce any water waste. They are directly connected to the main cold water supply, ensuring that all filtered water goes straight to your tap.

Does the filter improve the taste of tap water?

Yes, Aquarius Direct filters improve the taste of tap water by removing chlorine, chemicals, and heavy metals. If you are not satisfied with the taste, we offer a 30-day money-back guarantee.

Do I need to install a separate tap?

No, a separate tap is not necessary. Our filters are designed to work with your existing tap, allowing you to use filtered water for drinking, cooking, and washing dishes. However, if you prefer a separate tap, we can provide one upon request.

Can I taste the water before purchasing the filter?

We do not offer water tasting because water quality varies by location due to different mineral content. However, we provide a 30-day money-back guarantee, so if you are not satisfied, you can return the filter.

How often do I need to change the filter?

The filter replacement schedule depends on the model:

AD18 – every 12 months
AD200 – every 18 months
AD300 – every 18 to 24 months
AD300S – every 18 to 24 months

AD18

Free Shipping

Secure Payment

30-Day Money Back

SAVE UP TO 60%

WITH THE GOVERNMENT GRANT

1 micron water filters

Capacity

Suitability

For Cold Water