Sealey pneumatic brakeclutch bleeder and accessories sealey vs820sa a brake reservoir cap from sealey that uses air from the vehicle tyre reservoir holds 15l of hydraulic fluid flush the entire system with one fill without the risk of running the reservoir dry maximum pressure of 30psi makes the unit suitable for abs systems features a fluid shut off valve to prevent accidental spillage and air pressure release valve sealey vs820sa brake reservoir cap 42mm straight connector for vs8