: Yescom R410a Refrigerant Manifold Gauges 5
Large 2 3/4" Diameter Easy-to-read, Dual Gauges High Pressure 72" Refrigerant Charging Hose for R134A R12 R22 R502 Manifold Hose Set, 3pcs 3.8 out of 5 stars 9. plastic disk about 7mm. thick. It''s sealed on the edge with an o ring. It had a piece chipped out on one edge so it wouldn''t seal.