---
title: "dometic toilet parts — Niche Verdict: Worth a look (65/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/dometic-toilet-parts"
last_updated: "2026-07-13T22:34:46.877Z"
locale: en
meta:
  description: "dometic toilet parts shows a sweet-spot price point ($20.21 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:description": "dometic toilet parts shows a sweet-spot price point ($20.21 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:title": "dometic toilet parts — Niche Verdict: Worth a look (65/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **dometic toilet parts**

**Worth a look**

Shows a sweet-spot price point ($20.21 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 16Growth 73Conversion 60Competition 69Returns 86Price range 81Avg price 88Brand share 75Review moat 74Quality gap 67

**Avg price**

**Great****$20.21**

avg listing price — sweet spot $15–$100

**Returns**

**Great****1.5%**

return rate — above 6% kills the launch gate

**Price range**

**Great****$8.58–$46.22**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Brand share**

**Good****60%**

top-5 brand share — brands hold most of the demand

**Review moat**

**Good****522.55**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Good****+56.4%**

90-day search growth — must beat 0% to launch

**Competition**

**Good****44%**

top-5 click share — leaders hold, buyers still browse

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Good****5.1%**

search→purchase rate — share of searches ending in a sale

**Market size**

**Bad****$65K**

$65K/yr · 63K searches

## **Competition**

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**23 **▼falling

**Sellers**

**103**

**Top-5 brand share**

**60%**

**Open market**

**34%**

- Rakiyada18% - Vypart17% - Dometic10% - Halotronics9% - FORZEEY6% - Beech Lane6%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$3K8%$5K12%$8K16%$10K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 31 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Rakiyada Upgraded RV Toilet Valve Replacement Kit Compatible with Dometic 300 310 320 400 410 420 385311641 Dometic RV Toilet Parts with 385311658 Toilet Seal for Pedal-Flush Toilets](https://m.media-amazon.com/images/I/41YwBhvgyPL.jpg)**Rakiyada Upgraded RV Toilet Valve Replacement Kit Compatible with Dometic 300 310 320 400 410 420 385311641 Dometic RV Toilet Parts with 385311658 Toilet Seal for Pedal-Flush Toilets**Rakiyada**$18.34**4.4★155 rev](https://www.amazon.com/dp/B0FDGM6SB1) [2![385311641 RV Toilet Valve Replacement Kit for Dometic 300|301|310|311|320|321 Pedal Flush Toilets -Freeze-Resistant Flush Camper Toilet Valve Parts with 385311658 Toilet Seal](https://m.media-amazon.com/images/I/41PWIB0j5bL.jpg)**385311641 RV Toilet Valve Replacement Kit for Dometic 300|301|310|311|320|321 Pedal Flush Toilets -Freeze-Resistant Flush Camper Toilet Valve Parts with 385311658 Toilet Seal**Vypart**$16.12**4.6★227 rev](https://www.amazon.com/dp/B0DM5FB961) [3![Halotronics Upgraded RV Water Valve Replacement Kit for Pedal-Flush Toilets Compatible with Sealand Dometic 300 301 310 311 320 321 (385311641) - Hardware Included 2024 Model](https://m.media-amazon.com/images/I/31EkNc0-ZqL.jpg)**Halotronics Upgraded RV Water Valve Replacement Kit for Pedal-Flush Toilets Compatible with Sealand Dometic 300 301 310 311 320 321 (385311641) - Hardware Included 2024 Model**Halotronics**$10.15**4.6★3,524 rev](https://www.amazon.com/dp/B084HN12PS) [4![FORZEEY RV Toilet Foot Pedal Replacement fit for Dometic 300 310 320 321 Series Toilet Durable Injection Molded Compatible with Dometic RV Toilet Parts](https://m.media-amazon.com/images/I/211RVQj2J+L.jpg)**FORZEEY RV Toilet Foot Pedal Replacement fit for Dometic 300 310 320 321 Series Toilet Durable Injection Molded Compatible with Dometic RV Toilet Parts**FORZEEY**$29.92**4.5★69 rev](https://www.amazon.com/dp/B0F62146L8) [5![Beech Lane Upgraded Water Valve Kit Replaces 385311641 for Dometic Toilets 300 310 and 320 Increased Freeze Resistance Long Valve Lifespan Ultrasonic Sealing Safeguards Against Leaks (Natural)](https://m.media-amazon.com/images/I/31drYI04q0L.jpg)**Beech Lane Upgraded Water Valve Kit Replaces 385311641 for Dometic Toilets 300 310 and 320 Increased Freeze Resistance Long Valve Lifespan Ultrasonic Sealing Safeguards Against Leaks (Natural)**Beech Lane**$19.26**4.5★3,070 rev](https://www.amazon.com/dp/B09P1WXMTW)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![RV Toilet Seal Kit Replacement for Dometic 300 310 320 RV Toilet Parts Includes 385311652 Base Seal & 385311658 Flush Ball Seal with Mounting Hardware RV Toilet Replacement Parts for Camper Trailer](https://m.media-amazon.com/images/I/41MuEp8KOHL.jpg)**RV Toilet Seal Kit Replacement for Dometic 300 310 320 RV Toilet Parts Includes 385311652 Base Seal & 385311658 Flush Ball Seal with Mounting Hardware RV Toilet Replacement Parts for Camper Trailer**TeegRoow**$14.35**6 rev3mo ago](https://www.amazon.com/dp/B0GSRQK1S4) [![Upgraded RV Toilet Valve Replacement Kit Compatible with Dometic 300 301 310 311 320 321Replacement Number 385311641](https://m.media-amazon.com/images/I/41nRkwGsgnL.jpg)**Upgraded RV Toilet Valve Replacement Kit Compatible with Dometic 300 301 310 311 320 321Replacement Number 385311641**DGZMJJ**$13.52**9 rev4mo ago](https://www.amazon.com/dp/B0GR45TLXW) [![RV Toilet Seal and 3 Socket Floor Flange Kit for Dometic 300 310 320 Toilet Replacement Parts 385345892 RV Toilet Flange 385311658 Flush Ball Seal and 385311652 Base Seal Gasket 3-in-1 Repair Kit](https://m.media-amazon.com/images/I/41IqRCq0xTL.jpg)**RV Toilet Seal and 3 Socket Floor Flange Kit for Dometic 300 310 320 Toilet Replacement Parts 385345892 RV Toilet Flange 385311658 Flush Ball Seal and 385311652 Base Seal Gasket 3-in-1 Repair Kit**TeegRoow**$23.37**20 rev8mo ago](https://www.amazon.com/dp/B0G1KNZDYX) [![385311641 RV Toilet Valve Replacement Kit Compatible with Dometic Toilet Valve 300-321 Series Freeze-Resistant & Leak-Proof Design Includes Hose Clamp & Fasteners for RV Camper Pedal-Flush Toilets](https://m.media-amazon.com/images/I/41P7LQVsiZL.jpg)**385311641 RV Toilet Valve Replacement Kit Compatible with Dometic Toilet Valve 300-321 Series Freeze-Resistant & Leak-Proof Design Includes Hose Clamp & Fasteners for RV Camper Pedal-Flush Toilets**Cfyosnk**$10.10**41 rev8mo ago](https://www.amazon.com/dp/B0FWJR7RDZ) [![Upgraded RV Water Valve Repair Kit for Pedal Flush Toilets Compatible with Sealand Dometic 300 301 310 311 320 321 Freeze-Resistant Materials Replacement Number 385311641](https://m.media-amazon.com/images/I/41bGgpQYhVL.jpg)**Upgraded RV Water Valve Repair Kit for Pedal Flush Toilets Compatible with Sealand Dometic 300 301 310 311 320 321 Freeze-Resistant Materials Replacement Number 385311641**BUWTIQ**$18.11**35 rev10mo ago](https://www.amazon.com/dp/B0FHKN4L35)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![RV Toilet Seal Kit Replacement for Dometic 300 310 320 RV Toilet Parts Includes 385311652 Base Seal & 385311658 Flush Ball Seal with Mounting Hardware RV Toilet Replacement Parts for Camper Trailer](https://m.media-amazon.com/images/I/41MuEp8KOHL.jpg)**RV Toilet Seal Kit Replacement for Dometic 300 310 320 RV Toilet Parts Includes 385311652 Base Seal & 385311658 Flush Ball Seal with Mounting Hardware RV Toilet Replacement Parts for Camper Trailer**TeegRoow**$14.35**4.1★**▲ 212%**](https://www.amazon.com/dp/B0GSRQK1S4) [![Upgraded RV Toilet Valve Replacement Kit Compatible with Dometic 300 301 310 311 320 321Replacement Number 385311641](https://m.media-amazon.com/images/I/41nRkwGsgnL.jpg)**Upgraded RV Toilet Valve Replacement Kit Compatible with Dometic 300 301 310 311 320 321Replacement Number 385311641**DGZMJJ**$13.52**4.0★**▲ 208%**](https://www.amazon.com/dp/B0GR45TLXW) [![Aecsze 2 Pack 385311641 RV Toilet Water Valve Replacement Kit Durable Plastic Water Valve Kit for 300 310 320 Series for Dometic and Sealand Marine Toilet Includes Hose Clamp and Fasteners](https://m.media-amazon.com/images/I/41vV5afXmoL.jpg)**Aecsze 2 Pack 385311641 RV Toilet Water Valve Replacement Kit Durable Plastic Water Valve Kit for 300 310 320 Series for Dometic and Sealand Marine Toilet Includes Hose Clamp and Fasteners**Aecsze**$16.15**4.2★**▲ 172%**](https://www.amazon.com/dp/B0D9K2GTNJ) [![Upgraded RV Water Valve Repair Kit for Pedal Flush Toilets Compatible with Sealand Dometic 300 301 310 311 320 321 Freeze-Resistant Materials Replacement Number 385311641](https://m.media-amazon.com/images/I/41bGgpQYhVL.jpg)**Upgraded RV Water Valve Repair Kit for Pedal Flush Toilets Compatible with Sealand Dometic 300 301 310 311 320 321 Freeze-Resistant Materials Replacement Number 385311641**BUWTIQ**$18.11**4.6★**▲ 121%**](https://www.amazon.com/dp/B0FHKN4L35) [![385311641 RV Toilet Valve Replacement Kit Compatible with Dometic Toilet Valve 300-321 Series Freeze-Resistant & Leak-Proof Design Includes Hose Clamp & Fasteners for RV Camper Pedal-Flush Toilets](https://m.media-amazon.com/images/I/41P7LQVsiZL.jpg)**385311641 RV Toilet Valve Replacement Kit Compatible with Dometic Toilet Valve 300-321 Series Freeze-Resistant & Leak-Proof Design Includes Hose Clamp & Fasteners for RV Camper Pedal-Flush Toilets**Cfyosnk**$10.10**4.0★**▲ 115%**](https://www.amazon.com/dp/B0FWJR7RDZ)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +56.4% search growth over the last 90 days.

6K4KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: May, Jul, Aug, Sep · busiest ÷ quietest = 5.6×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Size-Overall**26%

*“Exact fit”*

**Assembly/Installation**12%

*“Easy enough to install”*

**Leak-Proof**11%

*“Does NOT leak”*

**Quality-Overall**10%

*“Excellent product”*

**Efficiency**7%

*“Used on rv toilet worked great”*

**Advertised Vs Actual Product**7%

*“As advertised”*

**Value For Money**7%

*“Great value”*

**Maintenance And Repair**3%

*“321 repair. perfect replacement”*

**Ease Of Use**3%

*“Easy to use”*

**Durability**1%

*“Very durable”*

### **What buyers complain about **

**Leak-Proof**31%

*“Leaking”*

**Quality-Overall**10%

*“Inconsistent quality”*

**Functionality-Overall**5%

*“Did not work”*

**Value For Money**5%

*“Are these expensive”*

**Durability**5%

*“Failed within one month”*

**Water Resistance**4%

*“letts water seep thru”*

**Thickness**4%

*“rubber gasket is way too thick”*

**Compatibility-Overall**4%

*“Commode part not compatible”*

**Size-Overall**3%

*“Flags was too big”*

**Assembly/Installation**3%

*“Kinda tricky to install”*

### **Top return reasons **

**Size-Overall**36%

**Leak-Proof**19%

**Compatibility-Overall**14%

**Defective Material/Parts**10%

**Functionality-Overall**5%

**Advertised Vs Actual Product**5%

**Value For Money**2%

**Assembly/Installation**1%

**Maintenance And Repair**1%

**Quality-Overall**1%