• GU - Universal couplings

    GT - Brass universal couplings

    GS - Universal couplings with safety

    GN - Italy couplings and plugs

    GD - Germany couplings and plugs

    GA - America connections

    GG - Italy giant couplings and plugs

    GM - Mini couplings and plugs

    GJ - Japan couplings and plugs

    JA - Japan semiautomatic couplings

    JA - Japan automatic couplings

    JA - Japan automatic and semiautomatic couplings

    JA - Standard Japan plugs

    AM - Coils fittings

    AG - Bayonett fittings

    GC - Safety CEJN couplings and plugs

    GR - Rotating couplings