Hollow Cone Spray Black Tips Produces smaller droplets for thorough coverage with contact pesticides and foliar applications. Maximum spray pressure is 300 PSI. The typical assembly with a disc core is: TeeJet Nozzle Body; 4514-NY Slotted Strainer; Core; Disc; CP20230 TeeJet Cap. 10-300 PSI Range of operation. 0.26-1.37GPM per disc-core. Hardened Stainless Steel Construction.