The Monomaterial Wood 18-400 Square Diffuser Cap by mPackting is a sustainable, high-design closure option tailored for the home and personal fragrance markets. With a clean, architectural square shape and friction-fit compatibility for 18-400 neck finishes, this overcap delivers both visual distinction and functionality for reed diffusers, room sprays, and aromatic oils. This closure is fully customizable and can be formed to match your exact brand vision and is available in a range of FSC-Certified woods including Ash, Beech, Mahogany and more.

This component exemplifies mPackting’s approach to sustainable packaging—crafted from bio-based, FSC-certified wood in a true monomaterial format that is fully recyclable. Locally manufactured in Italy and the USA, the diffuser cap supports reduced environmental impact while maintaining exceptional production quality and design consistency.

Offered in elegant finishing options such as Spray Varnishing, Oil Finishing, and Glossy, the cap can be customized to reflect a wide range of branding aesthetics. Decoration options including Laser Engraving, Silk Screen Print, Heat Stamping, Spray Coating, and Embossing provide premium branding potential. With a minimum order quantity of 25,000 units and production lead time of 8–10 weeks, the Monomaterial Wood 18-400 Square Diffuser Cap is a standout choice for brands seeking elevated, sustainable wood packaging in a geometric silhouette.