These are some 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.
QT125A 1/4" ANODIZED ALUMINUM QUICK TEST FITTINGS SET OF 3
1/4" NPT PLASTIC PLUG SOLD AS PACK OF 25
1/4" plastic male thread to put into test cocks. Sold in packs of 25.
These are for the test cocks for assemblies that have a line size feeding them of 2" and smaller.
1/4" BRASS CAP WITH O-RING (SOLD IN QTY 25)