Protective Window 24.9 × 1.5 mm, 4 kW
LP-W01 · from $4.16 each in a 10-pack

Representative image. You receive the exact size and spec in the listing.
In stock · ships from the USALP-W01
$41.60
$4.16 each in a 10-pack · save 15% versus singles
US shipping $9.95 · free at $99 parts subtotal. Details
Unused sealed packs: return within 30 days. Wrong fit — email us with the head and a photo before install. Returns
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Fitment
Matched by diameter, thickness, and power grade — not by head brand. Measure the window you take out.
Body Ø 24.9 mm · Thickness 1.5 mm · Grade 4 kW
Compatible consumable — not an OEM part.
Check it in Find by headNot sure? Send us a photoNeed a whole head? Get a delivered quote.
Protective window, 24.9 mm diameter by 1.5 mm thick, listed at 4 kW. The same nominal size at a higher kilowatt grade is a different coating tier, not a different thickness. Match diameter, thickness, and power grade to the seat in the head. Upper versus lower position was not on our spec sheet — check which seat you are replacing. Substrate and coating wavelength were not stated. Ask if the job needs the datasheet before you buy a box.
When to use
Protective window: Replace when spatter pits or a burn mark show. It keeps debris off the focus lens.
Key facts
- 24.9 × 1.5 mm protective window, 4 kW. Match the seat, not the head brand.
- Sold in 1 / 10 packs
- Ships from the USA
- Compatible aftermarket part, not OEM — confirm fit on first order
Specifications
| SKU / MPN | LP-W01 |
|---|---|
| Pack sizes | 1 (LP-W01-Q1) · 10 (LP-W01-Q10) |
| Type | Protective window |
| Body Ø | 24.9 mm |
| Thickness | 1.5 mm |
| Material | Not stated on spec sheet |
| Power grade | 4 kW |
Questions
- What if it does not fit my head?
- Email support@laserparts.us with the head model and a photo before you ship anything back. A listed fit that does not seat is replaced or refunded. Unused parts in sealed packs can come back within 30 days of delivery. Typical and noted fits are confirm-first.
- How do I reorder the same part?
- Order the pack SKU (LP-W01-Q1, LP-W01-Q10). SKUs stay the same between orders, and the JSON catalog lists every one.
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