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6pcs Quick Connect Plastic Check Valve One Way RO Water Filters Push to Connect Valve 1/4" One-way Valve Water Purifier
Quick answer
Is $4.39 a good price for 6pcs Quick Connect Plastic Check Valve One Way RO Water Filters Push…?
It is the usual price, not a deal: $4.39 is in line with the typical price of $4.33 that DipScout measured over the last 14 days. Tracked since Oct 23, 2026, it ranged from $4.09 to $4.55.
This drop is over. On Nov 3 the price fell to $4.09. The history below shows what happened.
$4.39
Today it costs $4.39 on AliExpress. Since Oct 23, 2026, when we started tracking it, it ranged from $4.09 to $4.55. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 14 days. The store advertises "was $4.53", but that is the store's own claim; we only state discounts our price history proves.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$4.39since Nov 9
Lowest$4.09Nov 3 to Nov 9
Highest$4.55Oct 23 to Nov 1
Tracked since Oct 23 · 3 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Nov 9, 23:47 UTC | $4.39 | +7% |
| Nov 3, 11:20 UTC | $4.09 | −6% |
| Nov 1, 16:09 UTC | $4.33 | −5% |
| Oct 23, 07:11 UTC | $4.55 | start |
| Store | KANNERT Official Store |
|---|---|
| Positive feedback (AliExpress) | — |
| AliExpress category | Home Improvement › Plumbing |
| Recorded readings | 4 |
| First seen | |
| Last reading |