Skip to content
Free delivery on orders from S$15
Basin5 min read

Will a basin filter fit my tap? A thread guide

The SEASEE basin kit is for taps with an internal thread. How to check yours, which connector to use, where each rubber ring goes, and what to do about a leak.

SEASEE team
SEASEE basin filter on a tap with water running into the basin

Quick summary

  • The basin kit is designed for basin taps with a threaded outlet, meaning an internal thread.
  • Some kitchen taps with a threaded outlet also fit.
  • A standard M24 x 1.0 connector is fitted, with 7 spare connectors in the box.
  • For a small leak, add 1 or 2 blue rubber rings, then plumber's tape.
  • If you are unsure, send a photo of your tap to us on WhatsApp.

Whether the SEASEE basin kit fits your tap comes down to one thing: the thread at the end of the spout. The kit is designed for basin taps with a threaded outlet, which means an internal thread inside the opening. Some kitchen taps with a threaded outlet fit as well. If your spout ends in a plain smooth tube, or the thread sits on the outside, this kit is not the one for it.

The rest of this guide shows you how to check, which connector to choose, where the rubber rings go, and what to do if the joint drips. You can follow it with the kit in front of you; plumber's tape is not included.

Check your tap

The end of most basin taps carries a small screw-in part called an aerator. It is the fitting that shapes the stream. Seen from above, turn it clockwise to unscrew it.

Once it is off, look at the spout:

  • Thread on the inside of the opening. You are looking at an internal thread. This is the kind the basin kit is designed for.
  • Thread on the outside of the spout. The outlet has an external thread, and the kit is not designed for it.
  • No thread at all. The kit has nothing to grip.

Taps differ in how deep the thread sits, and in its size, which is why the box holds more than one connector. If you cannot tell which kind you have, send a photo of the tap to us on WhatsApp before you order. We would rather look at the thread than guess.

The connectors in the box

The kit arrives with a standard M24 x 1.0 connector already fitted to the filter body. Seven spare connectors are in the box as well. The body itself is 43 mm across and 43 mm tall without its connector.

Connector Size Note
Fitted M24 x 1.0 Standard, pre-installed
Spare 1 M18 x 1.25
Spare 2 M20 x 1.0
Spare 3 M22 x 1.25
Spare 4 M23 x 1.0
Spare 5 M24 x 1.25
Spare 6 M24 x 1.0 Deeper
Spare 7 M24 x 1.0 Deepest

Start with the fitted connector. If it screws into your tap without effort, there is nothing more to choose. Do not force a connector that will not turn: back it off, check the thread again, and try the next size. If the thread does not match, try the spare that looks closest to it, and keep the others in the box in case you change taps.

When the thread is deep inside the tap

Sometimes the thread size matches, but the tap's own internal thread is deep. In that case use spare connector 6 or 7. Both are M24 x 1.0 like the fitted one, but they are deeper, and number 7 is the deepest.

Which rubber ring goes where

The box holds four rubber rings: one semi-clear, one black and two blue. Each has a job.

  • Semi-clear ring. This goes on the connector's outer thread.
  • Black ring. If the semi-clear ring feels loose on the connector, use the black ring in its place.
  • Blue rings (two). These are for leaks, and are described below.

Fitting it to the tap

  1. Unscrew the aerator from your tap. Seen from above, turn it clockwise.
  2. Screw the filter on with the fitted connector, or with a spare that matches your tap. Tighten it by turning anticlockwise, seen from above.
  3. Turn the tap on gently and look at the joint.

The kit also includes two spanners: a steel one with 25 mm and 22 mm jaws, and a plastic one made for the groove in the connector. If a connector sticks, turn it anticlockwise with the back of the plastic spanner.

If the joint leaks

If the joint between the tap and the filter drips, work through it in this order:

  1. Add one or two of the blue rubber rings to the joint.
  2. If it still drips, wrap the thread with plumber's tape. The tape is not in the box, so keep a roll at home.

If neither stops it, check that the connector matches the thread, and whether the deeper connectors suit your tap better. Send us a photo if you are still stuck.

After it is on

The filter inside is an activated carbon fibre (ACF) combination filter, and the body is made from a biomass-based plastic. The refill is built in three parts: a PP sediment layer, activated carbon fibre (ACF) and a ball-media core. Replacement timing varies with local water conditions, and the guide is about every 1 to 2 months. Changing a basin refill covers the swap, and how to keep the face plate clear so the stream stays straight.

Refills come three to a box. If you would rather not count the weeks, put the basin refill on the Refill Plan.

Where the basin kit sits among the others

The basin kit is one of five rooms in the SEASEE range. For the shower, bidet, travel and laundry kits, read A filter for every tap. To see the basin range in one place, open the basin collection.

Products in this article

  • SEASEE Basin Tap Water Filter Kit for sink and wastafel on a blue studio background
    Best seller

    Basin & Kitchen

    SEASEE Basin Tap Water Filter Kit for Sink & Wastafel

    For taps with internal threading
    Current price FromS$19.50
    Regular price S$39.60Save 51%