---
title: "Mansfield Anti Siphon Repair Kit — $24K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/mansfield-anti-siphon-repair-kit"
last_updated: "2026-08-07T14:37:15.483Z"
locale: en
meta:
description: "Niche score 63/100 · $24K/yr market · 20K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 63/100 · $24K/yr market · 20K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Mansfield Anti Siphon Repair Kit — $24K/yr Amazon US Niche (2026) - Flapen"
---
# **mansfield anti siphon repair kit**
**Worth a look**
Shows demand growing +273.3% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 6Growth 99Conversion 80Competition 50Returns 58Price range 72Avg price 70Brand share 69Review moat 90Quality gap 77
**Growth**
**Incredible****+273.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Great****192.17**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****8.3%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Price range**
**Good****$8.10–$32.51**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$14.42**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****64%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Bad****$24K**
$24K/yr · 20K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, mansfield anti siphon repair kit is a $24K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 64% of demand. Verdict: Worth a look — 63/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mansfield anti siphon repair kit market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$22K–$29K**
- units × avg price
- **Conversion rate**
- **8.3%**
- **Avg BSR**
- **#904**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **1.8%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **171 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▲rising
**Sellers**
**63**
**Top-5 brand share**
**64%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 90%
**Open market**
**29%**
- Yoursme17% - DEHOMKUS17% - LAIKOU15% - ARYEIELLSOW8% - Aulpq7% - Prier7%
## **Top mansfield anti siphon repair kit search terms**
- **mansfield outdoor faucet repair kit**5K/yr+558.6%7.0% conv. - **mansfield anti siphon repair kit**5K/yr+313.4%7.1% conv. - **mansfield spigot repair kit**3K/yr+202.8%6.1% conv. - **mansfield faucet repair kit**4K/yr+105.8%5.9% conv. - **mansfield anti-siphon repair kit**2K/yr+210.1%4.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/mansfield-anti-siphon-repair-kit/search-terms)
## **Top mansfield anti siphon repair kit products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$1K10%$2K15%$4K20%$5K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**630-8500 Wall Hydrant Complete Service Repair Kit Replaces for 300 400 & 500 Series Mansfield Style Hydrants and 300 & 400 Series Wall Hydrants**Yoursme**$14.65**4.2★166 rev](https://www.amazon.com/dp/B0CT5Q93MR) [2**123-0093 Stem Assembly Replacement fit for Prier 500 Series Mansfield Style Wall Hydrants Sillcock 12-inch Overall Length**LAIKOU**$25.29**4.3★128 rev](https://www.amazon.com/dp/B0D3HLHN8Y) [3**DEHOMKUS 630-7755 Wall Hydrant Repair Kit Compatible with Faucet Repair Kit 300 400 500 Series Replacement Pressure Vacuum Breaker Outdoor Faucet Wall Hydrants**DEHOMKUS**$8.82**4.0★27 rev](https://www.amazon.com/dp/B0DWMFNQFY) [4**ARYEIELLSOW 1 PACK 630-7755 Wall Hydrant Service Repair Kit Compatible With Mansfield Prier Faucet 300 400 and 500 Series Wall Hydrant**ARYEIELLSOW**$9.53**4.2★135 rev](https://www.amazon.com/dp/B0C4KQ2KGG) [5**DEHOMKUS 2Pcs 630-7500 Vacuum Breaker Repair Kit 300 400 500 Series Part Accessories for Mansfield Anti Siphon Repair Kit Pressure Vacuum Breaker Outside Faucet Wall Hydrants**DEHOMKUS**$12.68**4.3★55 rev](https://www.amazon.com/dp/B0CSFKT42K)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PWBBDSC 630-7500 Vacuum Breaker Repair Kit Service Parts Plunger Assembly Compatible with Prier Mansfield 300 400 500 Series Anti Siphon Outdoor Wall Hydrant (2/Pack)**PWBBDSC**$12.51**6 rev4mo ago](https://www.amazon.com/dp/B0GSVK5B8N) [**VYF 630-7965 Wall Hydrant Handle Kit Compatible with Mansfield 300 400 500 Series Frost-Proof Outdoor Faucet Replacement Handle and Screw Kit (1-Pack)**VYF**$8.65**45 rev5mo ago](https://www.amazon.com/dp/B0GJ72WTBB) [**PILISPARK Anti-Siphon Industrial-control-valves Repair Kit ASSE 1019-A Vacuum Breaker Check Valve Replacement Kits with Decorative Cover Plastic Body Plunger and O-Ring 1 Pack**PILISPARK**$9.37**84 rev5mo ago](https://www.amazon.com/dp/B0G6YSLWWD) [**Denkuhin 630-7755 Wall Hydrant Repair Kit Compatible with Outdoor Faucet Mansfield 300 400 500 Series Wall Hydrant Service Kit Pressure Vacuum Breaker (2 Sets)**Denkuhin**$17.70**4 rev5mo ago](https://www.amazon.com/dp/B0GL7Y3CZF) [**Young Dance Outdoor Faucets Repair Kit ASSE 1019-A Water Hose of Home Improvement ABS Plastic Anti-Siphon Valve Repair for Vacuum Breaker Outside Faucet1 Pack**Young Dance**$10.48**77 rev5mo ago](https://www.amazon.com/dp/B0G6Z3QPQN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**630-8500 Wall Hydrant Complete Service Kit fit for Mansfield Style 300 400 500 Series for Diamond 300 400 Series Wall Hydrants**usvehj**$14.47**4.1★**▲ 61%**](https://www.amazon.com/dp/B0D3CQ7WBF) [**PWBBDSC 630-7500 Vacuum Breaker Repair Kit Service Parts Plunger Assembly Compatible with Prier Mansfield 300 400 500 Series Anti Siphon Outdoor Wall Hydrant (2/Pack)**PWBBDSC**$12.51**4.7★**▲ 60%**](https://www.amazon.com/dp/B0GSVK5B8N) [**Young Dance Outdoor Faucets Repair Kit ASSE 1019-A Water Hose of Home Improvement ABS Plastic Anti-Siphon Valve Repair for Vacuum Breaker Outside Faucet1 Pack**Young Dance**$10.48**4.1★**▲ 53%**](https://www.amazon.com/dp/B0G6Z3QPQN) [**Aulpq for 8500 Wall Hydrant Complete Service Kit for Mansfield Style 300/400/500 Wall Hydrant**Aulpq**$15.60**4.2★**▲ 51%**](https://www.amazon.com/dp/B0CTHJFVBN) [**Xinafan Wall Hydrant Repair Kit Faucet Repair Kit 500 400 300 Series Part Accessories Pressure Vacuum Breaker Outdoor Faucet Wall Hydrants Replacement**Xinafan**$8.88**4.3★**▲ 49%**](https://www.amazon.com/dp/B0CQYGL4LZ)
**~~View all trending →~~**
## **What buyers say about mansfield anti siphon repair kit**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**25%
*“Fit like a glove”*
**Leak-Proof**13%
*“It does not leak”*
**Quality-Overall**11%
*“Great quality”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Efficiency**6%
*“was able to make it work”*
**Assembly/Installation**5%
*“Installation is easy”*
**Value For Money**5%
*“Great product at a good price”*
**Maintenance And Repair**4%
*“Easy and reliable repair”*
**Durability**2%
*“I do miss the old metal handles that used to be standard—they were far more durable—but I've learned to work with what's available”*
**Instructions/User Manual/Troubleshooting**2%
*“clear instructions”*
### **What buyers complain about **
**Size-Overall**30%
*“Did not fit”*
**Leak-Proof**14%
*“one leaked pretty bad”*
**Quality-Overall**7%
*“However quality is subpar”*
**Functionality-Overall**4%
*“Did not work”*
**Compatibility-Overall**4%
*“Did not fit the Asse 1019 A”*
**Defective Material/Parts**3%
*“Not all parts fit well on my 400 faucet”*
**Maintenance And Repair**3%
*“robbed parts to make repair”*
**Durability**3%
*“Broke when i was tightening it in”*
**Advertised Vs Actual Product**2%
*“Not as advertised”*
**Instructions/User Manual/Troubleshooting**2%
*“no instructions”*
### **Top return reasons **
**Size-Overall**63%
**Compatibility-Overall**13%
**Defective Material/Parts**7%
**Advertised Vs Actual Product**6%
**Leak-Proof**4%
**Functionality-Overall**2%
**Maintenance And Repair**2%
**Assembly/Installation**1%
**Value For Money**1%
**Quality-Overall**1%
## **Common questions**
- **Is mansfield anti siphon repair kit profitable to sell on Amazon United States?**
- The niche generates $24K/yr across 29 tracked products. 3 of 6 products launched in the last 360 days are still selling. 90-day search growth is +273.3%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the mansfield anti siphon repair kit niche?**
- 17 brands and 63 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 64% of demand.
- **What do buyers complain about in mansfield anti siphon repair kit?**
- Top complaints mined from reviews: Size-Overall, Leak-Proof, Quality-Overall. The return rate is 2.7%.
- **What does it cost to enter the mansfield anti siphon repair kit niche?**
- Listings span $8.10–$32.51; the average listing price is $14.42 (sweet spot $15–$100). The average incumbent carries 192 reviews — the moat a new listing must climb.
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