Brady combination plastic spring loaded foot / check valve 1" # FV-100 consist of a line check valve, along with a strainer. They are ideal for new systems, or as replacements in virtually any water delivery application $11.00
Teflon Tape 1/2" X 520" ( Set of 5 Rolls) # HTST520-50 (A) $3.00
Pedrollo 5-way brass tee simplifies mounting a pressure tank; pressure gauge and pressure switch to the pump. Includes one 1" male NPT outlet to connect to the pump discharge; two 1 female NPT outlet, top one to mount pressure tank and side outlet to discharge to system; on 1/4" male NPT pressure switch outlet and one 1/4" female NPT pressure gauge outlet. $8.00
Harvard Pressure Switch with 1/4" FIP connection, 30-50 PSI (40-60 PSI maximum setting), rated 1-1/2 HP @ 115 Volts and 2 HP @ 230 volts single phase $14.00