The P1 configuration consists of an inlet filter or filter/silencer, discharge silencer and pressure relief valve. The package may utilize the VersaBase mounting system base or other custom bases as customer needs dictate. The P1 configuration has many optional features which include pressure relief valve, check valve, discharge pressure gauge, special discharge adapters and various brackets that can be used for instrument or control panel mounting.
Another popular option is a clam shell type weather enclosure fabricated from aluminum. The enclosure is hinged to a supporting bracket and its travel is limited by either a cable or gas actuated piston.