Saturn Blocks are often seen on mobile construction equipment, such as skid steers and excavators (not Bobcat M Series machines). They are equipped with ISO 16028 interchange couplers & nipples and come with #12 Male JIC connections for pressure line and #6 ORB for drain line. Saturn Blocks offer the ability to drain the residual pressure before connection and disconnection, allowing the connection without pressure and without effort in order to reduce injury risk. Other threads available on request.