This is a JIC double nipple with NPT and UNF threads. Stainless steel 316 (1.4571) fittings have excellent corrosion resistance (better than stainless steel 304). The maximum operating pressure is 275 bar (3863.75 psi).
Specifications
Thread : UNF 3/4-16
Thread (smaller) : 1/4 inch
Dash Size : 8
Connection type : Inner thread conical (NPT),Outer thread flare (UNF)
Material : Stainless steel
Max pressure at 20 °C (bar) : 275
Fitting features : Reducing
Quality of material : Stainless steel (1.4571)
Material connection 1 : Stainless steel
Material connection 2 : Stainless steel
Material quality connection 1 : Stainless steel (1.4571)
Material quality connection 2 : Stainless steel (1.4571)
Shape : Straight

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