Search the yellow pages for Hydraulics shops or Industrial Supply houses.
Steel caps and plugs are available to withstand system pressures, and easy on/off plastic plugs and caps are available to prevent dust ingestion when cleaning the area of the fittings. The plastic ones usually come on fittings purchased at these shops and are discarded when the shop makes use of a fitting in a system that is in for repairs.
Steel caps and plugs are available to withstand system pressures, and easy on/off plastic plugs and caps are available to prevent dust ingestion when cleaning the area of the fittings. The plastic ones usually come on fittings purchased at these shops and are discarded when the shop makes use of a fitting in a system that is in for repairs.