Connection Size: 2-1/2-in
QUICK-CONNECT - Fast and effortless interlocking connectivity allows you to quickly stack and unstack toolboxes
SELF-TAPPING SCREW MODES - Optimized to avoid over-tightening
3/8-18 x 3/8-18 x 1/2-14 Thread
Reducing Tee 1 1/2 X 1 X 1 BLACK TEE tool Connection Size: 2-1/2-inReducing Tee, Connection Size 1: 1 1 2 in, Connection Type 1: FPT, Connection Size 2: 1 in, Connection Type 2: FPT, Connection Size 3: 1 in, Connection Type 3: FPT, Malleable Iron, Black, 1 1 2 11 1 2 x 1 11 1 2 Thread, Pressure Class: 150 lb, Dimension Standards: ANSI B16. 3, 20 to 350 deg F, Additional Information: 1. 5 x 1. 65 x 1. 78 in Center to End