Blue Seal Evolution 900mm Gas Target Top – Refrigerated Base G57-RB.Blue Seal Evolution 900mm Gas Target Top Refrigerated Base G57 RB.: Gas Target Top: 45MJ hr Dual Ring Cast Iron Burner: High output burner for efficient cooking. Refrigerated Base: Two GN 1 1 Drawers: Two drawers with a capacity for GN 1 1 pans with 100mm depth. Ventilated System with R134a Refrigerant: Refrigerated base with efficient ventilation using R134a refrigerant. Temperature Range: 2C to +8C: Provides a cooling range suitable for various