Hydraulic clutch bearing bleeder valve directly threads into 4AN bleeder hose, Machined from 316 stainless steel and uses direct sealing bleed screw (no pipe thread adapter), Works with any hydraulic clutch release bearing with 4AN fittings/hose, Included bleed screw is a "speed bleeder" design to allow one person clutch bleeding, Kit includes machined 4AN adapter and 1/4-28 bleed screw, 4AN lines (if needed) sold separately.