There are two types of storz gaskets.
Storz pressure gaskets will seal two storz hose couplings or adapters when pressurized. When not pressurized the fittings should be easily separated with a storz wrench. Please see our Wrenches category under All Products for various storz hydrant wrenches and spanner wrenches.
Storz suction gaskets are required for suction applications. A storz suction gasket will seal when two hose couplings or adapters are connected. These always requre storz wrenches to connect and disconnect due to the tight seal. Storz suction gaskets are thicker than storz pressure gaskets to prevent air from entering during suction hose applications.
After installing a new gasket we recommend a storz lubricant to preserve and lubricate the gasket. See our Gasket Spray Lubricant category under Adapters & Fittings.