Review on 🚰 Pfister 9742920 Faucet Replacement Part - 3 inches x 1 inch x 1 inch by Johnnie Trimble

I replaced the original Pfister cartridge 974-292 with this 974-2920. I called Price Pfister to confirm it was the correct replacement cartridge. I picked up some plumbing grease here to put some on the o-rings before installation. My cartridge lasted 28 years so I sprayed penetrating oil on the retaining ring, cleaned it with a wire brush a few hours later and dug up that little protrusion with a flat head screwdriver as someone else suggested (thanks). . Collar twisted slightly for removal. Put the button back on the old cartridge and pull it out, put the new cartridge in and put everything back together. Work for 15 minutes for a beginner.