The extremly open profile construction of the proven Neptun NFS-I freezer liners ensure maximum air flow through and between the stacked layers, ensuring faster, even ande more effective freezing and defrosting. The Neptun NFS-I Freezer Liners are probably the most effective spacers on the market and are used worldwide by small to leading manufactures in the food industry. The layers are made from HDPE - a material that is resistant to most acids, chemicals and temperatures withstands between -50 °C and +90 °C. Consequently, the Neptun NFS-II Freezer Liners can be used over and over again and are a profitable investment for most companies. This intermediate layer comes in black as standard - however, special colors are certainly possible. Improved load capacity and rigidity make NFS-II particularly suitable for soft and/or unevenly filled boxes or when using spacers even during truck transport. Designed for temperature sensitive application The open and 50 mm/2" high profile and 50mm/2" ensures that air circulates quickly through the spacer cavities, ensuring faster and efficient freezing of the entire pallet load in freezing and tempering operations. Effective at temperature ranges from -40° to +60° Open profile design allows for easy cleaning Nestable to save space (30mm/1.2" box height) 100% recyclable Stadard color; Black. Other colors also request. Approved for indirect food contact HD polyethylene spacers for direct food contact can supplied on request.