Comparison : Item # 1031-5655-04-04-04-04-FG, 1/4"-18 MPT x 1/4"-18 FPT x 1/4"-18 FPT x 1/4"-18 FPT Forged Steel MP-FP-FP-FP Cross
Item # 1031-5655-06-06-06-06-FG, 3/8"-18 MPT x 3/8"-18 FPT x 3/8"-18 FPT x 3/8"-18 FPT Forged Steel MP-FP-FP-FP Cross
Item # 1031-5655-08-08-08-08-FG, 1/2"-14 MPT x 1/2"-14 FPT x 1/2"-14 FPT x 1/2"-14 FPT Forged Steel MP-FP-FP-FP Cross
Item # 1031-5655-12-12-12-12-FG, 3/4"-14 MPT x 3/4"-14 FPT x 3/4"-14 FPT x 3/4"-14 FPT Forged Steel MP-FP-FP-FP Cross
Item # 1031-5655-16-16-16-16-FG, 1"-11-1/2 MPT x 1"-11-1/2 FPT x 1"-11-1/2 FPT x 1"-11-1/2 FPT Forged Steel MP-FP-FP-FP Cross