Cross four handrail tubes in a clean "+" at the 42.4mm European standard. The 735-424 Flush "X" Elbow joins four 1.67" OD tubes at square 90° right angles at a single junction — the fitting for a spot where two rail lines meet and cross, such as a landing grid or a catwalk network. It fits 1.67" OD tubing with a.080" wall built to the DIN/EN standard. It comes in 316 stainless, Polished or Satin, for marine-grade corrosion resistance on coastal and exposed installations. It pairs with the matching 1.67" round tubing, splices, and T fittings in the same 42.4mm line, so a crossing junction and the runs feeding it come together from parts sized to fit each other.