I ordered this product for its quality and affordable price (I already have a series and I'm very satisfied), but I had the bad surprise to see that the lot received does not match the photo and those are T connectors (mentioned in the detailed description, but believe: the photo or text ...) and not as pH or PZ caps on the exposed photo ... good, no problem with return AMAZON, but still a waste of time. Simply match the text with image, gentlemen the kings of the mail !!! even a little effort and it will be perfect!