The DPF 70/6… is a 6-cavity duplex filter for duplex repeaters. This duplexer is tunable within 406 – 470 MHz. The housing is made of extruded aluminium, the chassis of passivated steel, and teflon insulation has been applied in the rigid coaxial cables and in the connectors. The filter is coated with black vinyl to prevent corrosion. Filters come with N-Type connectors.