MettleAir 4V100M-4-1PK 4 Row Manifold for 4V100 Series Solenoid/Air Pilot Valves Type: Manifold for mounting up to 4 ( Four ) Valves of 4V100 / 4A100 Series (solenoid or air piloted) Model: 4V100M-4 Supply Ports: 1/4" NPT Exhaust Ports: 1/4" NPT Mounting hardware and seals are included. Block off plates sold seperately.