---
title: "thetford 31705 — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/thetford-31705"
last_updated: "2026-07-14T06:16:37.679Z"
locale: en
meta:
  description: "a concentrated shelf (top 5 take 100% of clicks) — thetford 31705 doesn't clear our bar today."
  "og:description": "a concentrated shelf (top 5 take 100% of clicks) — thetford 31705 doesn't clear our bar today."
  "og:title": "thetford 31705 — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
---

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# **thetford 31705**

**Skip it**

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 2Growth 81Conversion 98Competition 0Returns 90Price range 93Avg price 87Brand share 0Review moat 62Quality gap 25

**Conversion**

**Incredible****16.5%**

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

**Price range**

**Great****$14.60–$31.52**

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

**Returns**

**Great****1.3%**

return rate — above 6% kills the launch gate

**Avg price**

**Great****$19.65**

avg listing price — sweet spot $15–$100

**Growth**

**Great****+75.3%**

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

**Review moat**

**Good****1,038.25**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.6★**

avg incumbent rating — lower means beatable quality

**Market size**

**Bad****$9K**

$9K/yr · 3K searches

**Competition**

**Bad****100%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**3 **▼falling

**Sellers**

**39**

**Top-5 brand share**

**100%**

**Open market**

**0%**

- Thetford54% - Vypart39% - 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%15%$1K30%$3K45%$4K60%$5K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 4 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Thetford 31705 Aqua-Magic V Toilet Water Module Assembly](https://m.media-amazon.com/images/I/41JvBKoEkgL.jpg)**Thetford 31705 Aqua-Magic V Toilet Water Module Assembly**Thetford**$31.52**4.7★2,324 rev](https://www.amazon.com/dp/B002UC1AYQ) [2![31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart](https://m.media-amazon.com/images/I/31BW3FWfUhL.jpg)**31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart**Vypart**$14.60**4.6★714 rev](https://www.amazon.com/dp/B0D6RCMZTG) [3![Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653](https://m.media-amazon.com/images/I/41tZ8SoVHXL.jpg)**Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653**Vypart**$16.08**4.5★58 rev](https://www.amazon.com/dp/B0FJ1WDR4T) [4![Beech Lane 31705 Toilet Water Module Assembly for Thetford Magic V Toilets Patented Leak Resistant Design Improved Valve Lifespan Designed In USA For High Performance (Natural)](https://m.media-amazon.com/images/I/31Csw8baDAL.jpg)**Beech Lane 31705 Toilet Water Module Assembly for Thetford Magic V Toilets Patented Leak Resistant Design Improved Valve Lifespan Designed In USA For High Performance (Natural)**Beech Lane**$16.41**4.6★1,057 rev](https://www.amazon.com/dp/B09NKB4TQF)

### **Newest**

by launch date

[![Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653](https://m.media-amazon.com/images/I/41tZ8SoVHXL.jpg)**Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653**Vypart**$16.08**58 rev11mo ago](https://www.amazon.com/dp/B0FJ1WDR4T) [![31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart](https://m.media-amazon.com/images/I/31BW3FWfUhL.jpg)**31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart**Vypart**$14.60**714 rev2y ago](https://www.amazon.com/dp/B0D6RCMZTG) [![Beech Lane 31705 Toilet Water Module Assembly for Thetford Magic V Toilets Patented Leak Resistant Design Improved Valve Lifespan Designed In USA For High Performance (Natural)](https://m.media-amazon.com/images/I/31Csw8baDAL.jpg)**Beech Lane 31705 Toilet Water Module Assembly for Thetford Magic V Toilets Patented Leak Resistant Design Improved Valve Lifespan Designed In USA For High Performance (Natural)**Beech Lane**$16.41**1,057 rev8y ago](https://www.amazon.com/dp/B09NKB4TQF) [![Thetford 31705 Aqua-Magic V Toilet Water Module Assembly](https://m.media-amazon.com/images/I/41JvBKoEkgL.jpg)**Thetford 31705 Aqua-Magic V Toilet Water Module Assembly**Thetford**$31.52**2,324 rev16y ago](https://www.amazon.com/dp/B002UC1AYQ)

### **Trending**

90-day click momentum

[![Thetford 31705 Aqua-Magic V Toilet Water Module Assembly](https://m.media-amazon.com/images/I/41JvBKoEkgL.jpg)**Thetford 31705 Aqua-Magic V Toilet Water Module Assembly**Thetford**$31.52**4.7★**▲ 34%**](https://www.amazon.com/dp/B002UC1AYQ) [![Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653](https://m.media-amazon.com/images/I/41tZ8SoVHXL.jpg)**Vypart 31705 RV Toilet Water Valve Kit - Fits Thetford Aqua-Magic V (High/Low Hand/Foot Flush) | Leak-Proof Freeze-Resistant Replaces 31688 31687 31653**Vypart**$16.08**4.5★**— 5%**](https://www.amazon.com/dp/B0FJ1WDR4T) [![Beech Lane 31705 Toilet Water Module Assembly for Thetford Magic V Toilets Patented Leak Resistant Design Improved Valve Lifespan Designed In USA For High Performance (Natural)](https://m.media-amazon.com/images/I/31Csw8baDAL.jpg)**Beech Lane 31705 Toilet Water Module Assembly for Thetford Magic V Toilets Patented Leak Resistant Design Improved Valve Lifespan Designed In USA For High Performance (Natural)**Beech Lane**$16.41**4.6★**▼ 12%**](https://www.amazon.com/dp/B09NKB4TQF) [![31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart](https://m.media-amazon.com/images/I/31BW3FWfUhL.jpg)**31705 31688 31687 31653 RV Toilet Water Valve kit- Freeze Resistance & Leakage-Resistant RV Toilet Parts for Thetford Aqua-Magic V High and Low by Vypart**Vypart**$14.60**4.6★**▼ 29%**](https://www.amazon.com/dp/B0D6RCMZTG)

## **Demand & seasonality**

Weekly Amazon search volume, last 101 weeks — +75.3% search growth over the last 90 days.

10060Spike '24Black Friday '24Spike '25Black Friday '25Holiday '25Spike '26 seasonDecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 3.2×

## **Reviews**

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

### **What buyers love **

**Size-Overall**29%

*“Excellent fit”*

**Quality-Overall**13%

*“Overall, this is a reliable replacement part that did exactly what it was supposed to do”*

**Value For Money**11%

*“The whole unit is affordable”*

**Leak-Proof**11%

*“Easy install and fixed the existing leak”*

**Assembly/Installation**10%

*“It came with everything needed for installation”*

**Efficiency**7%

*“functions as it should”*

**Ease Of Use**6%

*“Easy to replace”*

**Maintenance And Repair**3%

*“Very affordable fix”*

**Advertised Vs Actual Product**2%

*“As advertised”*

**Product Condition**1%

*“This in combination with a return lever spring makes it all feel brand new”*

### **What buyers complain about **

**Leak-Proof**31%

*“Leaking”*

**Quality-Overall**11%

*“so this raises concerns about durability or quality control”*

**Rusts/Corrodes**8%

*“Froze and cracked despite RV antifreeze”*

**Durability**8%

*“like all of the other brands of the same apparatus it will start failing in about a year”*

**Size-Overall**6%

*“it was a bit too loose”*

**Instructions/User Manual/Troubleshooting**4%

*“There are no instructions so if you dont know what you are doing you may have some issues”*

**Thickness**4%

*“rubber gasket is way too thick”*

**Design-Overall**3%

*“Poor design by Thetford to begin with”*

**Value For Money**3%

*“is a $2 valve too much to expect”*

### **Top return reasons **

**Size-Overall**29%

**Leak-Proof**20%

**Compatibility-Overall**18%

**Defective Material/Parts**12%

**Advertised Vs Actual Product**6%

**Functionality-Overall**5%

**Assembly/Installation**3%

**Value For Money**2%

**Connectivity-Overall**2%

**Maintenance And Repair**1%