I planning on replacing the cartridge in my shower and it looks like I can get either the 1200 or the 1225. Looking on line it seems like the main difference is the 1200 is all brass and the 1225 has a plastic shell. Moen's site makes it sound like the 1225 is better but I wanted to find out if that is true.

Any plumbers out there who can give some insight into the difference in the two and which one I should get?

The handle always slowly pushes out until the water starts again. The shower and faucet “piston”/push button works fine. The overflow drain is rusted through…

We tape down the handle between uses to keep the water off.

I assume the model is from the late seventies. Do we absolutely have to take it apart to identify the piece?

Help please, it’s been over a year !

I'm replacing an ancient Moen shower cartridge at my girlfriend's house and I'm stuck. I got the old one out surprisingly easily and the new one (#1225) slid right in. However, I can't manage to get the flat brass locking pin (kind with two legs) to slide in to lock the cartridge in place. It feels like I'm getting solid resistance on both sides despite having lined the notches up as carefully as possible and making sure the new cartridge is seated all the way in. It almost feels as if the new cartridge is a mm or so longer than the old one.

I'm considering using a file or hacksaw blade to widen the slot for the locking pin a little. Any other ideas?

The other day the turn on this shower was very stuck. I managed to move it, but now the max hot is not as hot as it used to be (and not hot enough to shower) .

As I took it apart, I discovered the back of handle was broken. I think I was still able to move it to the max position, but it's possible it wasn't moving the actual cartridge. Other faucets are OK so I know it's not the water heater. Do you think just replacing the handle might fix the problem?

I'll first try to replace the handle... Though it might have broken bc the cartridge was sticky. Can someone help identify the right cartridge in case I need to? And am I on the right diagnosis path here? Also I've never replaced this but I'm decently handy... Any tips would be appreciated!

From what I can tell I don't have shutoff at the valve so I'd need to shut off the whole house water to replace (we don't have individual bathroom shutoffs). I'd like to avoid a cartridge replacement if it can bc if I fail at it, I'm out of luck until a professional can come repair my mess.

The house was built in 1993 in Texas. I'm not positive if this bathroom has been redone... It's definitely gotten a face-lift but the tile seems original.

Lastly, is there a replacement handle without valve change that is more lever action? This one turns right/left and the straight out to increase water flow. This shape is hard for my kid to use (also might be bc the cartridge is a little hard to move for a youngster)

Thanks

Probably 40 years ago this valve was installed. Trying to pick new shower head and valve covers. No tub involved. Will a Moen, Delta work or will I need to replace the valve as part of the upgrade?