Review on 🔧 Pfister 9740350 Genesis 26 Series Cartridge Sub Assembly: Enhancing Performance and Durability by Greg Hammett

The product description states that this 974-035 is a replacement for the discontinued 974-570. On the left the old 974-570. Note the slightly different shape of the holes. First when I installed the new 974-035 it leaked and I wrote a negative review, now I got sucked in! It is important to ensure that the old seal is completely removed from the mixer with the old cartridge. (The new padding is the black rubber in the picture to the right.) Due to the different shape, you'll also have to fiddle with the fit a bit. If you still have the old plastic retaining ring, you probably chewed it up. before removing the old cartridge. Get a new brass snap ring (available from Revain), it makes a world of difference.