A water purifier connection is the set of fittings and tubing that supplies water to an under-sink filter or purifier and routes filtered water to a dedicated faucet. It commonly uses a feed-water adapter or angle-stop tee, small-diameter tubing (often 1/4 inch), and quick-connect or compression fittings.
| Property | Typical value |
|---|---|
| Type | Feed-water adapter, angle-stop tee, or T-valve kit |
| Material | Brass or food-grade plastic (POM/PP) fittings; PE tubing |
| Tubing size | Commonly 1/4" OD; some systems use 3/8" — confirm against datasheet |
| Connection | Quick-connect (push-fit) or compression fittings |
| Feed source | Cold-water supply tap-off at the angle stop |
| Drain (RO) | Drain saddle to waste line for reverse-osmosis units, if applicable |
| Standard | Drinking-water contact norms vary by market — confirm requirement |
Indicative / typical values for planning — actual products vary by manufacturer and standard. Confirm the final spec sheet before ordering; we do not publish fixed prices, request a quote for current offers.
Used to connect under-sink filters and reverse-osmosis systems to the cold-water supply and a separate purified-water faucet. RO systems also require a drain connection for reject water.
Send your sizes and quantities (or your floor plan) — our team specs and supplies against it.
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