Your search for "gaskets" revealed the following:
Multi-Purpose, ISO 7241 series B Interchange, Hydraulic Quick Couplings - 60 Series
Rp 0,00
Vendor: APSS Store
View Product
VERSA Quick Exhaust (3/4" NPT x 1" NPT), SST | QE-6-316
Rp 4.618.000,00
Vendor: APSS Store
View Product