These are some necessary but mostly optional testing accessories that can help you get an accurate test or make it quicker and easier to get the test done.
They come from different manufacturers.
110617 Mid-West Quick Test Fittings (Set of 9) For Backflow Testing
Designed for hand tight connection of Differential Pressure Test Gauges to Backflow Prevention Assemblies.
No Wrenches or Teflon Tape Required Set includes all fittings required to test any size Backflow device.
Includes 3 spare O-rings per size packaged in a convenient zip-lok plastic storage bag.
1/2" QUICK CONNECT TEST FITTING HARD ANODIZED ALUMINUM
PART# EZ150 1/2" QUICK CONNECT TEST FITTING HARD ANODIZED ALUMINUM (SET OF 3)
Apollo Seat Removal Tool Kit 1/2" -2"
Part # 40-000-SRT Check and relief valve seat tool. Three different tools to repair sizes 1/2"-2". These are for the 40 series double check and reduced pressure assemblies.