The Goessler Couvert G-Line Laser is a window envelope designed for laser printing, featuring a transparent window on the left side that allows the recipient address to show through from the enclosed document.
3-piece pack of C4 window envelopes with a 4 g/m² paper weight
Left-positioned window for clear address visibility from the inserted letter
Laser-compatible paper ensures reliable feed and print quality in all standard laser printers
White finish provides a clean, professional appearance for business correspondence
What sets the Goessler G-Line Window Envelope apart
The G-Line series combines a practical window design with high-quality 120 g/m² paper that resists tearing and holds ink without smudging. The left-side window placement aligns with standard European letter formatting, so the address panel remains visible without additional labeling.
Ideal for...
Office professionals and administrative teams who send invoices, statements, or formal correspondence by post and need a clean, professional look without extra addressing steps. Also suited for small businesses and home offices that print documents and envelopes in-house.
Application of Goessler Couvert G-Line Window C4
Insert the printed document into the envelope with the address side facing the window
Ensure the document is aligned so the recipient address is visible through the left-side window
Seal the envelope using the adhesive strip or a stapler for added security
Send via standard postal service — the 120 g/m² paper meets typical letter postage requirements
Goessler is a Swiss stationery manufacturer specializing in office supplies and postal materials. The brand is known for producing reliable, standards-compliant envelopes and packaging solutions for business and home office use. Goessler products are widely available through Swiss retail channels and are recognized for consistent paper quality and functional design.
It is a printable window envelope for laser printers, used to send invoices, letters, and formal correspondence with the recipient address visible through the left-side window.
The envelope is C4 format (229 x 324 mm) with a 120 g/m² paper weight, suitable for standard laser printing and postal mailing.
Yes, the G-Line Laser paper is designed for standard laser printers and ensures reliable feed and print quality without smudging or jamming.
Each pack contains 250 white C4 window envelopes with a left-side window.
No specific environmental certifications are listed for this product. The envelope is a standard office supply item without special eco-labels.
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