https://www.hydraulicstore.com/hydraulic/gauges-measurement/gp-6504-adapters-male-jic-x-gp-x-female-orb?page=1
6504 GAUGE PORT ADAPTERS - MALE JIC X GP X FEMALE JIC | Trausch Dynamics
Gauge Port Adapters Typically used to allow for the addition of a gauge in the line without additional adaptors. Female JIC X Male JIC X #4 Gauge Port Plated...
gauge port adaptersmale