Manufactured from flexible brake fluid resistant rubber, this product has been introduced as a replacement bleed adaptor for the Laser range of bleed bottles and vacuum bleeders. Ideal to convert an existing vacuum pump into a temporary bleeding device. Features and Benefits Rubber brake and clutch bleed nipple adaptor; fits hose diameters: 4 - 8mm Designed to fit snugly over the bleed nipple & allow connection to any suitably sizes hose Use with one man bleed hose like LSR5037700B; or with a plain bleed hose like LSR5036819H Can also be used as replacement adaptor for the bleed hose found in LSR5036783B (brake bleeder wrench set) & LSR5036592B (bleed catch bottle)