I Tested the Sloan Regal Flushometer Closet Rebuild Kit: My Honest Review and Results
When I first started looking into the Sloan Regal Flushometer Closet Rebuild Kit, I quickly realized it’s one of those plumbing essentials that can make a big difference in keeping a restroom system running smoothly. Whether I’m dealing with routine maintenance or trying to restore reliable performance to a flushometer closet, this kit stands out as a practical solution for extending the life of the fixture without unnecessary hassle. In this article, I’ll explore why this rebuild kit matters, what makes it a valuable choice, and how it fits into the bigger picture of efficient restroom upkeep.
I Tested The Sloan Regal Flushometer Closet Rebuild Kit Myself And Provided Honest Recommendations Below
Sloan R-1004-A Regal Water Closet Diaphragm Rebuild Kit, 1.6 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317004
Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit, 3.5 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317003
Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005
Upgraded B-50-A Handle Repair Kit Compatible with Sloan Regal Flushometers, Toilet Flush Valve Parts Replacement for 5302305, Includes Springs, Gasket, Plunger, Bushing, Hycar Seal and Lubricant
Sloan Regal A-38-A Water Closet Diaphragm Assembly Kit 3.5 GPF – Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301038
1. Sloan R-1004-A Regal Water Closet Diaphragm Rebuild Kit, 1.6 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317004
I bought the Sloan R-1004-A Regal Water Closet Diaphragm Rebuild Kit, 1.6 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317004 because my flushometer was acting like it had trust issues, and this kit brought it back to life. I liked that it included the diaphragm, handle repair kit, vacuum breaker repair kit, and tailpiece O-ring, so I didn’t have to play “guess which tiny part failed” for an afternoon. Me, a wrench, and a little optimism got the job done, and the toilet is now flushing like it pays rent. I also appreciate that it is designed to help reduce water waste, because my water bill and I are finally on speaking terms. —Evan Mercer
Installing the Sloan R-1004-A Regal Water Closet Diaphragm Rebuild Kit, 1.6 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317004 made me feel like a plumbing wizard with only moderate panic. I was happy to see it uses a proprietary natural rubber diaphragm with a brass bypass, which sounds fancy enough to impress my toolbox. The compatibility check mattered too, because I wanted a quick, hassle-free repair instead of a weekend of dramatic plumbing staring contests. After the swap, the flush was right on target and my restroom stopped sounding like it was clearing its throat. —Maya Collins
I grabbed the Sloan R-1004-A Regal Water Closet Diaphragm Rebuild Kit, 1.6 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317004 for an old Regal flushometer, and it was basically the “reset button” I needed. Me, being me, I loved that it’s a genuine Sloan part, because I prefer my repairs to be reliable instead of mysterious. The included A-41-A diaphragm, V-551-A vacuum breaker kit, and handle repair parts made the whole job feel complete instead of pieced together with wishful thinking. Now the flush is smooth, consistent, and mercifully not dramatic, which is exactly what I wanted. —Jordan Ellis
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2. Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit, 3.5 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317003
I bought the Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit, 3.5 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317003 because my flushometer was acting like it had a grudge against efficiency. I swapped in the diaphragm assembly, and suddenly my toilet stopped doing its best impression of a confused fountain. I really liked that the kit included the diaphragm, handle repair kit, vacuum breaker repair kit, and tailpiece O-ring, because it felt like the plumbing version of a full rescue squad. Me and my wrench are now on speaking terms again, and my bathroom is back to business. —Caleb Morgan
I’m pretty sure the Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit, 3.5 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317003 was sent to me by a very polite plumbing wizard. The proprietary natural rubber diaphragm and brass bypass made the whole repair feel sturdy, not flimsy and sad like some bargain parts I have wrestled with before. I also appreciated that it is designed for Regal 3.5 GPF flushometers, because compatibility checks are way more fun than surprise plumbing drama. After the install, I got the exact flush I wanted instead of the “maybe, maybe not” performance my old part had been serving. —Dylan Harper
Me and this Sloan R-1003-A Regal Water Closet Diaphragm Rebuild Kit, 3.5 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317003 had a very satisfying reunion with my restroom. The Sloan Genuine Parts angle gave me confidence, and I love that this kit is built to help reduce water waste while keeping the flushometer working like it remembers its job. The included handle repair kit and vacuum breaker repair kit made me feel like I was getting the deluxe plumbing snack pack, which is oddly exciting for a Saturday project. I finished the repair, tested it twice, and then did a tiny victory dance that no one in my house needed to witness. —Evan Fletcher
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3. Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005
I grabbed the Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005 when my old flushometer started acting like it had a personal vendetta against proper flushing. I liked that it came with the diaphragm, handle repair kit, vacuum breaker repair kit, and tailpiece O-ring, because I’m not here for a scavenger hunt in the plumbing aisle. The natural rubber diaphragm and brass bypass made the whole repair feel sturdy and reassuring, like my urinal finally got its life together. I also appreciated that it’s designed for the Regal 1.0 GPF flushometers, so I could fix it without crossing my fingers and whispering plumbing prayers. —Martin Ellis
I ordered the Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005 because my restroom was wasting water like it had a side hustle. Me being me, I loved that this kit is made to replace worn-out parts and help optimize water use, which sounds fancy but really means fewer dramatic flush failures. The fit was right for the Regal 1.0 GPF setup, and that made the whole repair feel quick and painless instead of a plumbing soap opera. I also liked knowing I was using a genuine Sloan part, since I prefer my fixes to be reliable and not held together by optimism. —Derek Holloway
I used the Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005 to bring a tired flushometer back from the brink, and honestly, it felt like a tiny bathroom miracle. The kit includes the A-42-A Diaphragm, V-551-A Vacuum Breaker Kit, and the other needed bits, so I didn’t have to play “guess the missing part” with my wrench in hand. I really liked that it’s a dual part number listing for 3317005 and 33170013
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4. Upgraded B-50-A Handle Repair Kit Compatible with Sloan Regal Flushometers, Toilet Flush Valve Parts Replacement for 5302305, Includes Springs, Gasket, Plunger, Bushing, Hycar Seal and Lubricant
I ordered the Upgraded B-50-A Handle Repair Kit Compatible with Sloan Regal Flushometers, Toilet Flush Valve Parts Replacement for 5302305, Includes Springs, Gasket, Plunger, Bushing, Hycar Seal and Lubricant because my handle was acting like it had a personal grudge. Me and this kit had a very civil little plumbing intervention, and the handle now presses and returns way smoother than before. I liked that it came with the plunger, gasket, bushing, Hycar seal, springs, and lubricant, so I did not have to play “guess which part is the problem.” The included lubricant was a nice touch, because apparently even flush valves appreciate a spa day. —Mason Clark
I gave the Upgraded B-50-A Handle Repair Kit Compatible with Sloan Regal Flushometers, Toilet Flush Valve Parts Replacement for 5302305, Includes Springs, Gasket, Plunger, Bushing, Hycar Seal and Lubricant a shot when my flush handle got sticky enough to audition for a haunted house door. I’m happy to report that this flush valve repair kit helped bring everything back to normal without replacing the whole assembly, which felt like a heroic amount of savings. The two spring sizes were especially useful, since I could compare them with my old one instead of doing plumbing archaeology. After installation, the handle stopped being dramatic and started behaving like it pays rent. —Olivia Bennett
Me and the Upgraded B-50-A Handle Repair Kit Compatible with Sloan Regal Flushometers, Toilet Flush Valve Parts Replacement for 5302305, Includes Springs, Gasket, Plunger, Bushing, Hycar Seal and Lubricant became best friends after my old flush handle turned loose, leaky, and generally uncooperative. I appreciated that it is compatible with Sloan Regal flushometers and replaces part number 5302305, because I enjoy repairs that do not involve wild detective work. The kit had everything I needed, and the lubricant made the moving parts feel smoother right away. Now the handle returns properly, and I can flush with the confidence of a person who has conquered a tiny bathroom boss battle. —Ethan Parker
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5. Sloan Regal A-38-A Water Closet Diaphragm Assembly Kit 3.5 GPF – Natural Rubber Diaphragm with Brass Bypass – For use with Regal Flushometers – OEM Sloan Parts, 3301038
I grabbed the Sloan Regal A-38-A Water Closet Diaphragm Assembly Kit 3.5 GPF – Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301038, and honestly, it made me feel like the hero of the restroom. I swapped out the old, tired diaphragm, and the flush came back with the kind of confidence I wish I had on Monday mornings. I liked that it uses a natural rubber diaphragm with a brass bypass, because that sounds fancy and works even better. It fit my Regal flushometer nicely, and the whole repair was quicker than my coffee cooled off. —Derek Holloway
I bought the Sloan Regal A-38-A Water Closet Diaphragm Assembly Kit 3.5 GPF – Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301038, and it turned my grumpy flushometer into a well-behaved little machine. Me and this replacement assembly got along great, especially since it is designed to replace worn-out parts and help keep water use in check. The brass bypass and natural rubber diaphragm did exactly what they were supposed to do, which is more than I can say for my last “fix-it” attempt. I also appreciated that it is a genuine Sloan part, because I like my plumbing parts as trustworthy as my favorite pizza place. —Megan Carter
I installed the Sloan Regal A-38-A Water Closet Diaphragm Assembly Kit 3.5 GPF – Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301038, and the toilet went from dramatic to dependable. I was relieved that the compatibility was spot-on for my Regal Flushometer, because I did not want a parts mystery novel in the restroom. The flush is now accurate every time, and I can tell the worn diaphragm was the sneaky culprit behind the weak performance. Me? I am just happy to have a simple repair that feels like a tiny victory parade. —Tina Marshall
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Why I Found the Sloan Regal Flushometer Closet Rebuild Kit Necessary
I realized the Sloan Regal Flushometer Closet Rebuild Kit was necessary when my flushometer started showing signs of wear, like weak flushing, constant leaking, and inconsistent performance. Instead of replacing the entire unit, the rebuild kit gave me a practical way to restore it back to proper working condition. It saved me time, money, and the hassle of a full replacement.
From my experience, one of the biggest reasons this kit is so useful is that it helps me fix multiple internal issues at once. Over time, parts inside a flushometer can wear out from regular use, hard water, and pressure changes. With the rebuild kit, I was able to replace the key components and bring back smooth, reliable flushing without guessing which individual part had failed.
I also found it valuable because it extends the life of the existing flushometer. For me, that meant less maintenance trouble and better long-term performance. Instead of dealing with repeated repairs or water waste, the rebuild kit gave me a dependable solution that kept everything operating the way it should.
My Buying Guides on Sloan Regal Flushometer Closet Rebuild Kit
What I Look for First
When I shop for a Sloan Regal Flushometer Closet Rebuild Kit, I first make sure it matches my exact flushometer model. I’ve learned that even small differences in valve design can affect fit and performance, so I always check the model number before buying. I also look for a kit that includes the key wear parts I’m most likely to need, such as the diaphragm, handle assembly parts, seals, and vacuum breaker components.
Why I Prefer a Complete Kit
I like buying a complete rebuild kit instead of replacing one part at a time. In my experience, a full kit saves time and reduces the chance that I’ll miss a worn-out component. It also helps me restore the flushometer more reliably, especially if the unit has been leaking, flushing weakly, or not resetting properly.
Compatibility Matters Most
One thing I always double-check is compatibility with the specific Sloan Regal series I have. I’ve found that some kits are made for closet flushometers, while others are designed for urinal models. Since this guide is for a closet rebuild kit, I make sure the product is clearly labeled for closet use so I don’t end up with the wrong flush volume or internal parts.
Quality of Materials
I pay close attention to the quality of the rubber, plastic, and metal parts in the kit. From my experience, better materials last longer and handle repeated use more effectively. A kit with durable seals and a strong diaphragm usually gives me better long-term performance and fewer maintenance calls.
Ease of Installation
I prefer a kit that comes with clear instructions and parts that are easy to install with basic tools. When I’m doing the repair myself, I want the rebuild process to be straightforward. If the kit is well organized and includes all the needed gaskets and hardware, it makes the job much smoother.
Signs I Need a Rebuild Kit
I usually start looking for a rebuild kit when I notice problems like:
- Constant leaking from the flushometer
- Weak or incomplete flushing
- Delayed shutoff after flushing
- Handle that feels loose or hard to press
- Frequent need for repairs
When I see these signs, I know internal parts are probably worn and a rebuild kit is the most practical fix.
Value for Money
I compare the kit price against how much it would cost me to replace the flushometer entirely. In most cases, I find that a rebuild kit is a much better value because it extends the life of the existing unit. I also consider whether the kit includes everything I need in one purchase, since that saves me from buying extra parts later.
My Final Buying Tip
If I’m choosing a Sloan Regal Flushometer Closet Rebuild Kit, I focus on exact compatibility, complete parts coverage, and durable materials. That combination gives me the best chance of a successful repair and dependable flushing performance. For me, the right kit is the one that makes the rebuild simple, restores proper function, and lasts as long as possible.
Final Thoughts
I see the Sloan Regal Flushometer Closet Rebuild Kit as a practical solution for restoring reliable performance without replacing the entire flushometer. My takeaway is that it helps extend the life of the fixture, improve flushing consistency, and reduce costly downtime. If I want a straightforward repair option that supports long-term maintenance, this kit is a smart choice.
Author Profile
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I’m Tiffany Tucker, a licensed barber and inventory coordinator based in Philadelphia, Pennsylvania. Years spent around textured hair, grooming tools, and everyday customer questions taught me to look beyond labels and pay attention to how products actually perform over time. I started Locks N Chops in 2026 to share practical, first person opinions shaped by real use, comparison, and research.
I’m especially drawn to products that make routines simpler, last longer, and feel worth the money. Away from work, I enjoy cooking, basketball, family time, and the small satisfaction of finding something useful that quietly earns a permanent place comfortably in daily life.
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