Please advice Shower control brand name and model?

[machinist]

A valve clip removal tool is specifically designed for these plastic tabs. It’s a thin, hooked metal tool that slides into the gap where the red arrows are pointing. Insert it at the tab location, hook the retention clip, and either push in or pull out (depending on whether the clip locks inward or outward) while gently pulling on the knob. If resistance is high, check for any additional clips or locking points before applying more force.

Alternatively, a precision flathead screwdriver can also work if you don’t have a specialized tool. Using a small flathead, carefully wedge it into the gap near the tab and apply light pressure to release the lock while pulling on the knob. Be careful not to use excessive force. A plastic trim removal tool is another good option, as it provides leverage without risking damage to the surrounding surfaces. If space is tight, a right-angle pick tool can help by reaching into the small opening and disengaging the locking tab with minimal effort.

[TinyTool]

I’ve been searching but couldn’t find the exact model. The closest match I found is the Delta T17140-SS, but it doesn’t seem to have the same locking mechanism, so your faucet might be from a lesser-known brand or an older model.

Since you've already tried several methods to unlock it without success, I’d suggest directly prying off the temperature control. Some models have it clipped in rather than locked, so it might come off with gentle force.

[jgy2001]

Thank you very much for your suggestions. Where can I buy this Delta T17140 ? Home Depot?

[TinyTool]

The Delta T17140 trim kit has been discontinued, and it's not available at Home Depot or Lowe’s. You might still find some leftover stock from third-party retailers, but I couldn’t locate any at the major stores. If you're looking for a similar replacement, you may want to check Delta’s Monitor 17 series for an updated model. Also, kindly make sure you have the exact model before purchasing a replacement, so you don’t run into compatibility issues while replacing it.

[jgy2001]

Thank you, you are saying, I probably need to replace the entire shower control with different model or brand? Any suggestions?

[TinyTool]

Since the handle isn’t coming off, it’s tough to confirm the exact brand and find the right trim kit. At this point, it might be a good idea to call in a plumber. They have the right tools to safely remove the handle without damaging anything inside. If it turns out to be Delta, you might still have some trim kit options, like the MultiChoice or Monitor 17 series. But if it’s another brand, a plumber can help figure that out and let you know whether you can just swap the trim or if replacing the valve would be the better way to go. Since replacing the valve means opening up the wall, it’s definitely worth getting the right info before making a decision.

[jgy2001]

Finally able to contact somebody in the remodeling office and confirm this is Delta Lockwood T17440 Shower Trim set from Home Depot on 12-2009. This discontinued no longer in stock. Any suggestion welcome.

[TinyTool]

Finally! Glad you found the exact model. That was a long search, but now that we know what you’re working with, we can figure out the best way forward.

Since this trim set is discontinued, a good approach is to check if your shower has a Delta R10000 MultiChoice Universal Valve behind the wall. There's a good chance it would have been paired with it, as this valve was already widely used at that time. Many of Delta’s newer T17 series trim kits, like Lahara, Cassidy, or Linden, should fit as direct replacements without any plumbing modifications.

If that’s not an option, another route is to search for remaining stock or secondhand parts. It might take a bit of digging, but it’s worth a shot.

You could also try reaching out to Delta’s customer support. They may have a recommended alternative trim kit that works with your existing setup or can confirm compatibility with a newer model.

If none of these options pan out, the last resort would be replacing the entire valve and trim set. This would allow you to choose any shower trim style, but it would involve cutting into the wall, so it’s the most involved option.

[jgy2001]

Thank you for your suggestions. This last option seems better done by plumbing professionals?

https://terrylove.com/forums/index.php?threads/delta-17-multichoice-disassembly.64985/

Video in #3 post seems applies to our shower control. Correct?

[TinyTool]

Yes, replacing the entire valve and trim set is definitely a job best handled by a plumbing professional, especially if it requires cutting into the wall. It involves shutting off the water supply, removing the old valve, soldering or connecting new pipes, and ensuring everything is properly sealed to prevent leaks. If you’re comfortable with DIY plumbing and have access to the right tools, it’s possible to do it yourself, but it’s a bit more complex than swapping out trim. If you’re unsure, bringing in a pro will save time and help avoid potential issues down the line.

Video in #3 post seems applies to our shower control. Correct?

Most likely. Have you tried popping the cap off directly? If it feels stuck, try using a rubber glove for a better grip, or apply a bit of white vinegar around the edges to loosen any mineral buildup.

[jgy2001]

Thank you TinyTool, tried white vinegar, didn't do any. The plastic keys seem stuck. Do not wish to break it and keeping the shower as is.

[TinyTool]

Sounds like that cap is really stuck! Over time, mineral buildup or just a tight seal can make these things stubborn. Try warming it up a bit with a hairdryer on low, sometimes a little expansion helps loosen it. If that doesn’t do the trick, a bit of silicone spray or WD-40 around the edges might help break the seal. Give it some time to work in, then try twisting the cap with a rubber glove or a jar opener for better grip.

If it's still not budging, you can gently pry around the edge with a plastic spudger or a dull butter knife, but be careful not to crack it. If none of this works, it might be seized up for good, and at that point, a plumber might be your best option before something breaks. Hope one of these tricks does the job! Let me know how it goes.

[jgy2001]

Thank you very much, Mr. TinyTool. Have tried most of your suggestions. The shower temperature control knob is still stuck, Now a large gap between the water volume control knob and temperature control knob. But this temperature control knob is still stuck and not coming out. Pretty sure some kind of locking key is holding the knob. We are quite sure if we pull hard enough, that lock key will break. And then we have a major work to replace the entire shower control.

[TinyTool]

You're welcome. It sounds like the cap is stuck because of the locking mechanism shown in C-2. In this version, the temperature control cover (4) doesn’t just snap off, it has a hook at the front and a rear snap (5) that holds it in place. That could be why it's not prying off easily.

To remove it:

1. Try pushing the cover (4) forward slightly to disengage the rear snap (5).
2. Once the snap is free, tilt or lift the cover from the back while keeping the front hook engaged.
3. Then, slide the cover off the knob.

Please see the attached image.

[TinyTool]

Now a large gap between the water volume control knob and temperature control knob.

This suggests that the rear snap (5) might already be disengaged, but the front hook (4) could still be holding the cover in place. I couldn't find any video but it should be pretty straight forward. If it feels stuck, try gently wiggling it or applying slight pressure to ensure it unhooks properly. Sometimes, these plastic parts can be a bit stubborn, so a little careful movement should help.