Manual Pressure Relief Valve - 620-04

Speedflow manual, push in, pressure relief valve is often used on race engines with pressurised inlet manifolds as a way of maually releasing pressure beneath a supercharger should the need arise or as a check prior to any work being undertaken.
Can be used in any area where this type of faciltiy is required.

Has 7/16" UNF thread and comes supplied with 'O' ring to seal. 

Machined from aluminium with red and blue anodised finish.