








🛠️ Upgrade your RV toilet valve—because leaks and freezes are so last season!
The Beech Lane Upgraded Water Valve Kit is a premium replacement for Dometic 300, 310, and 320 series RV toilets, engineered with freeze-resistant glass fiber reinforced polymer and ultrasonic seam sealing for superior leak protection. Designed for easy, tool-minimal installation without toilet removal, it offers enhanced durability and a longer lifespan than the original valve, ensuring reliable, crisp flush performance in all conditions.






| ASIN | B09P1WXMTW |
| Best Sellers Rank | #9,074 in Automotive ( See Top 100 in Automotive ) #5 in RV Toilet Spare Parts |
| Brand | Beech Lane |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,952) |
| Date First Available | May 21, 2020 |
| Exterior Finish | Plastic |
| Inlet Connection Size | 1 Inches |
| Inlet Connection Type | Flange |
| Item Weight | 1.76 ounces |
| Item model number | BL-110-Master |
| Manufacturer | Beech Lane |
| Manufacturer Part Number | BL-110-Master |
| Material | Plastic |
| Number of Ports | 2 |
| Outlet Connection Size | 1 Inches |
| Outlet Connection Type | Flange |
| Package Dimensions | 4.72 x 4.06 x 1.69 inches |
| UPC | 856152008896 |
M**3
Dometic 310
This works great so far (installed it yesterday). It was a perfect replacement on my Dometic 310. I didn't even have to take up the toilet. It took two small screw drivers to push in the clips to remove the old one, but the installation of the new one was easy.
Z**T
A Necessary Reliability Upgrade for Dometic Toilets
I picked up the Beech Lane Upgraded Water Valve to replace the stock valve on my Dometic, and the value for money is immediately apparent. Dealing with a leaking toilet in a travel trailer is a nightmare, and this kit is a high-quality solution at a very fair price. The quality of this valve feels great to the original equipment; the plastic is sturdy and the internal seals appear robust. In terms of Size, it is a perfect direct-fit replacement for the 385311641 part, meaning there were no issues with it fitting into the tight housing on the 310 series. It provides a crisp, clean flush with a strong water flow and, most importantly, a tight shut-off. Minimal tools needed. i am a mechanic by trade so i did not see anything overly complicated to the replacement.
J**.
Two Screws Hold it to the back of the toilet!
This was the First Time replacing the foot flush water valve. I removed the toilet and ordered this replacement. It was easy to install. Seems to have more flush pressure! I went a few steps further and added a valve to my pex behind the toilet ! I did this for a friend's camper last winter and since mine was leaking went ahead and bought another shark bite push on valve for my camper so if this happens again I will be able to Just turn off the toilet water and use a Bucket to flush the water instead of water ruining my camper floor if it leaks again! Now I am able to make 100% sure the toilet doesn't leak when I am gone. Now I don't have to yell outside to turn the water off or run to the outside faucet while water is all over the floor. Saves on Towels too. Valve was less than $20 at Lowes Home Improvement. Don't cut the pex too short. Grab the pex with Visegrips before you cut it or you will be fishing the pex out of the hole in the floor. That's no fun.
R**N
Flush valve
Installed and works as it should. Replaced one that was leaking.
J**S
✅ Beech Lane Upgraded Replacement Valve for Dometic 300 Series Toilets
As someone who hates DIY repairs, especially when it comes to my RV toilet, I can say this Beech Lane replacement valve made the process a lot less frustrating. It’s designed to fit Dometic 300, 310, and 320 series toilets, replacing part 385311641, which is great if you're tired of leaks or yearly valve replacements. 🔹 Why I Chose This Valve: ✅ Freeze-Resistant Technology – This was the biggest selling point for me. My original valve cracked after a hard freeze, leaving me with a leaking toilet and a major headache. This valve’s glass fiber reinforced polymer construction is designed to withstand freezing temperatures, making it far more reliable in cold weather. ✅ Over-Engineered for Durability – This valve feels solid and better built than the original. It’s designed for longevity, so I’m hopeful I won’t have to replace it anytime soon. ✅ Rotary Seam Melting – The seams are completely sealed during production, which helps prevent leaks. This is a small but important detail that makes a difference in long-term performance. ⚠️ Minor Drawbacks: ❌ Tight Space Installation – Like any RV toilet repair, installation wasn’t fun. The space is cramped, and working at awkward angles is inevitable. However, this isn't the product's fault—just the reality of RV maintenance. ✅ Final Verdict: If you’re tired of dealing with leaking RV toilet valves, especially after cold weather, this Beech Lane upgrade is worth it. It’s built to last, and the freeze-resistant design gives me peace of mind that I won’t be dealing with another cracked valve anytime soon.
A**L
Simply works...
This is a product that either works or doesn't. In this case, it does. At this point, I can't see the difference between the OEM and this product other than price. This product works with my Dometic toilet in my travel trailer and was easily replaced. Essentially it's a hose clamp, screw, and then push clips on the product to remove, then reverse the steps. The hardest part for me was the access to the valve, which was very close to a wall. Most will not have this issue. Overall, I would recommend due to value. At this price point, I'm thinking of keeping a spare one since these are so inexpensive. As an RV'er, having spare parts on-hand prevents distractions from your trip.
D**Y
Worked great
Product worked great and saved me from over spending on prices at the RV store.
D**I
Fit Well/Made in China
Part seems well built, onky time and use will be the true judge. One thing I dont like is the company pastes American flags and says they are a proud US based company wanting you to think they make parts hwre, they dont. Valve had a large Made in China sticker so if you care about those things thwn it might matter ro you.
J**E
It works as described, easy to install. I didn't get my holiday trailer winterizes before our first freeze up. The trailer froze solid. All my lines, freshwater tank and toilet. The valve did not brake like the original one. Great quality. Highly recommend if you live where the weather freezes.
P**L
This unit replaced the existing one because it had a leak caused by freezing (second time I’ve had to replace this). I will winterize the trailer soon and will find out if this one will survive the winter. The unit did fit and worked perfectly.
P**E
Après avoir vu les vidéos. Je m'attendais à avoir une Nec plus ultra de valve. Au final elle fuit l'eau plus que la précédente (Pièce d'origine). Moi qui croyais payer plus cher pour une pièce 'made in USA' et recevoir une made in China :-(
G**P
Je ne peux pas évaluer la fiabilité du produit pour le moment! Cependant, j'ai payé vraiment moins cher que chez les concessionnaires de VR. Le produit a été facile à installer. L'ensemble contenait tout les éléments pour une installation complète. Après vérification avec la pression d'eau, la valve faisait le travail, sans égouttement! Maintenant reste à vérifier la fiabilité du produit.
D**.
Exact fit, easy to install.
Trustpilot
2 months ago
2 weeks ago