Aluminum Manifold Set with Sight Glass good quality shock proof pretectors oversized sightglass for easy viewing aluminum block body 61'' with three hoses Aluminum Manifold Set with Sight Glass is suitbable for R-22,R-410A,R-404A.It has accessories with can tap valve(CH-340,CH-340R),valve core tool.To be packed in black case. Aluminum Manifold Set with Sight Glass(HVAC tools)