D50-D75 Large Size Laser Protective Windows 50*2 Fused Quartz Lens For Laser Welding/Marking/Cleaning Galvanometer Field Lens
Quick answer
Is $3.69 a good price for D50-D75 Large Size Laser Protective Windows 50*2 Fused Quartz Lens…?
It is the usual price, not a deal: $3.69 is in line with the typical price of $3.69 that DipScout measured over the last 9 days. Tracked since Nov 2, 2026, the price hasn't changed.
$3.69
Today it costs $3.69 on AliExpress. Since Nov 2, 2026, when we started tracking it, the price hasn't changed. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 9 days.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Last reading$3.69on Nov 6
The price hasn't changed once since Nov 2, when we started tracking it.
Hover over the chart to see each price.Tap the chart to see each price.
| Store | Demarklaser Official Store |
|---|---|
| Positive feedback (AliExpress) | — |
| AliExpress category | Tools › Measurement & Analysis Instruments |
| Sold | 20 |
| Recorded readings | 1 |
| First seen | |
| Last reading |