Comparison : Item # 1031-5604-02-02-02-B, 1/8"-27 FPT x 1/8"-27 FPT x 1/8"-27 MPT Brass FP-FP-MP Branch Tee
Item # 1031-5604-02-02-02-FG, 1/8"-27 FPT x 1/8"-27 FPT x 1/8"-27 MPT Forged Steel FP-FP-MP Branch Tee
Item # 1031-5604-02-02-02-SS, 1/8"-27 FPT x 1/8"-27 FPT x 1/8"-27 MPT Stainless Steel FP-FP-MP Branch Tee
Item # 1031-5604-04-04-04-B, 1/4"-18 FPT x 1/4"-18 FPT x 1/4"-18 MPT Brass FP-FP-MP Branch Tee
Item # 1031-5604-04-04-04-FG, 1/4"-18 FPT x 1/4"-18 FPT x 1/4"-18 MPT Forged Steel FP-FP-MP Branch Tee