Tube Stub Connectors/Adapters Tube Stub Connectors/Adapters Bulkhead Reducer/Adapter Part Number: G-BR Brand: Griplok Bulkhead Reducer/Adapter Calibration Union Part Number: G-CU2 Brand: Griplok Calibration Union Female Adapter Part Number: G-FA Brand: Griplok Female Adapter Male Adapter Part Number: G-MA Brand: Griplok Male Adapter Port Connector Part Number: G-PC Brand: Griplok Port Connector Reducer/Adapter Part Number: G-R Brand: Griplok Reducer/Adapter Reducing Port Connector Part Number: G-RPC Brand: Griplok Reducing Port Connector 1