---
title: "Pentair Mastertemp 400 Control Board — $107K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/pentair-mastertemp-400-control-board"
last_updated: "2026-08-09T20:20:00.165Z"
locale: en
meta:
description: "Niche score 53/100 · $107K/yr market · 21K searches/yr · $85.47 avg price. High returns (7.7%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $107K/yr market · 21K searches/yr · $85.47 avg price. High returns (7.7%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Pentair Mastertemp 400 Control Board — $107K/yr Amazon US Niche (2026) - Flapen"
---
# **pentair mastertemp 400 control board**
**Worth a look**
Shows a thin review moat (22 avg reviews), but high returns (7.7%) keeps it on the watch list.
Market size 26Growth 55Conversion 66Competition 44Returns 15Price range 15Avg price 80Brand share 69Review moat 99Quality gap 95
**Review moat**
**Incredible****21.9**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$85.47**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****64%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****5.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+28.3%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$107K**
$107K/yr · 21K searches
**Returns**
**Bad****7.7%**
return rate — above 5% kills the launch gate
**Price range**
**Bad****$37.02–$447.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, pentair mastertemp 400 control board is a $107K/yr Amazon United States market (21K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in May. Verdict: Worth a look — 53/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **pentair mastertemp 400 control board market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$171K–$214K**
- units × avg price
- **Conversion rate**
- **5.9%**
- **Avg BSR**
- **#1,295**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **86%**
- **Out of stock**
- **14.4%**
- **Avg brand age**
- **17 months**
- **Avg seller age**
- **172 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **—flat
**Sellers**
**38**
**Top-5 brand share**
**64%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 99%
**Open market**
**29%**
- Primeco24% - ROBOA14% - Generic11% - VigiFront8% - FANXIN7% - Kartio7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +28.3% search growth over the last 90 days.
700500Spike '24Holiday '24Spike '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/pentair-mastertemp-400-control-board/trend)
## **Top pentair mastertemp 400 control board search terms**
- **pentair mastertemp 400 control board**10K/yr+11.4%8.1% conv. - **mastertemp 400 control board**5K/yr+28.9%10.2% conv. - **42002-0007s**4K/yr+57.4%7.9% conv. - **pentair heater control board**3K/yr+63.8%6.5% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/pentair-mastertemp-400-control-board/search-terms)
## **Top pentair mastertemp 400 control board 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%10%$11K20%$21K30%$32K40%$43K110100 Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Primeco 42002-0007S 461105 Replacement Control Board 472610Z Switch Pad For Pentair Mastertemp Sta-Rite Max-E-Therm Natural Gas Pentair NA and LP Series Pool/Spa Heater - 1 YEAR WARRANTY**Primeco**$150.53**4.2★76 rev](https://www.amazon.com/dp/B0CBSQGZYW) [2**ROBOA 42002-0007S Control Board Kit (461105) with 472610Z Switch Pad Compatible Replacement for Pentair MasterTemp 400/300/250 with Sta-Rite Max-E-Therm SR400/SR333/SR200**ROBOA**$63.57**3.7★27 rev](https://www.amazon.com/dp/B0DSJFV46K) [3**VigiFront 42002-0007S Pool Heater Control Board Kit 461105 Replacement Control Board with 472610Z Switch Pad for Pentair Control Board Kit Compatible with Mastertemp Max-E-Therm Pool & Spa Heaters**VigiFront**$65.53**5.0★24 rev](https://www.amazon.com/dp/B0H4PXY3CP) [4**FANXIN 42002-0007S Pool Heater Control Board Kit 461105 with 472610Z Switch Pad Upgraded Locking Connectors Fit for Pentair MasterTemp 400/300/250/200 & Sta-Rite Max-E-Therm SR400/SR333/SR200**FANXIN**$61.91**4.1★11 rev](https://www.amazon.com/dp/B0GKMNQQ18) [5**Kartio 42002-0007S Control Board Kit Replacement for Pentair MasterTemp 200/250/300/400 and Sta-Rite Max-E-Therm SR200/SR333/SR400 with 472610Z Switch Membrane Pad**Kartio**$58.93**3.5★34 rev](https://www.amazon.com/dp/B0DYZPFQPZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VigiFront 42002-0007S Pool Heater Control Board Kit 461105 Replacement Control Board with 472610Z Switch Pad for Pentair Control Board Kit Compatible with Mastertemp Max-E-Therm Pool & Spa Heaters**VigiFront**$65.53**24 rev1mo ago](https://www.amazon.com/dp/B0H4PXY3CP) [**42002-0007S Control Board Kit with 472610Z Touchpad for Mastertemp 400**CHYKUANG**$52.00**5 rev3mo ago](https://www.amazon.com/dp/B0GXFBXHBD) [**LOTMOVE 42002-0007S Control Board Kit Compatible with Pentair MasterTemp 125/200/250/300/400 and Sta-Rite Max-E-Therm Pool & SPA Electrical System with 472610Z Switch Membrane Pad 1 Year Warranty**LOTMOVE**$58.94**12 rev3mo ago](https://www.amazon.com/dp/B0GWV69RRQ) [**CHAOHAI 42002-0007S Control Board Kit with 472610Z Switch Pad Compatible with Pentair MasterTemp 200/250/300/400 & Sta-Rite Max-E-Therm SR200/SR333/SR400 Pool/Spa Heater Replace # 461105**CHAOHAI**$56.10**4 rev4mo ago](https://www.amazon.com/dp/B0GTZ3NP7C) [**FANXIN 42002-0007S Pool Heater Control Board Kit 461105 with 472610Z Switch Pad Upgraded Locking Connectors Fit for Pentair MasterTemp 400/300/250/200 & Sta-Rite Max-E-Therm SR400/SR333/SR200**FANXIN**$61.91**11 rev5mo ago](https://www.amazon.com/dp/B0GKMNQQ18)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2026 New Upgraded 42002-0007S 461105 Pool Heater Control Board Kit (OEM) Replacement for Pentair 42002-0007S Control Board KitCompatible with Swimables 42002-0007S - Warranty - US Green**Generic**$45.46**3.4★**▲ 175%**](https://www.amazon.com/dp/B0GSMNTQBP) [**42002-0007S Control Board Kit with 472610Z Touchpad for Mastertemp 400**CHYKUANG**$52.00**5.0★**▲ 175%**](https://www.amazon.com/dp/B0GXFBXHBD) [**VigiFront 42002-0007S Pool Heater Control Board Kit 461105 Replacement Control Board with 472610Z Switch Pad for Pentair Control Board Kit Compatible with Mastertemp Max-E-Therm Pool & Spa Heaters**VigiFront**$65.53**5.0★**▲ 174%**](https://www.amazon.com/dp/B0H4PXY3CP) [**LOTMOVE 42002-0007S Control Board Kit Compatible with Pentair MasterTemp 125/200/250/300/400 and Sta-Rite Max-E-Therm Pool & SPA Electrical System with 472610Z Switch Membrane Pad 1 Year Warranty**LOTMOVE**$58.94**4.2★**▲ 173%**](https://www.amazon.com/dp/B0GWV69RRQ) [**FANXIN 42002-0007S Pool Heater Control Board Kit 461105 with 472610Z Switch Pad Upgraded Locking Connectors Fit for Pentair MasterTemp 400/300/250/200 & Sta-Rite Max-E-Therm SR400/SR333/SR200**FANXIN**$61.91**4.1★**▲ 172%**](https://www.amazon.com/dp/B0GKMNQQ18)
**~~View all trending →~~**
## **What buyers say about pentair mastertemp 400 control board**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**17%
*“Easy to install”*
**Size-Overall**12%
*“Fit perfect”*
**Value For Money**10%
*“this board is an excellent value”*
**Heating**9%
*“It quickly restored full heating functionality”*
**Quality-Overall**7%
*“Reliable & Great Replacement Kit”*
**Ease Of Use**7%
*“Easy”*
**Touch/Button Controls**6%
*“The buttons have a nice tactile click to them”*
**Advertised Vs Actual Product**5%
*“Worked as advertised”*
**Functionality-Overall**4%
*“just follow the way the previous membrane attached to the control board it will work flawlessly”*
**Maintenance And Repair**2%
*“Quick easy economical fix for a DIYer to save and get back up and running”*
### **What buyers complain about **
**Durability**23%
*“Last only a few months and failed”*
**Heating**15%
*“the heater will not work properly”*
**Value For Money**9%
*“A waste of money”*
**Quality-Overall**7%
*“Cheap product”*
**Functionality-Overall**7%
*“Came in not working”*
**Assembly/Installation**4%
*“It took a little time swapping everything over carefully”*
**Flammable**3%
*“smoke started coming off two of the chips on the back”*
**Instructions/User Manual/Troubleshooting**3%
*“New instructions missing”*
**Mounting**3%
*“Pins on new motherboard do not fit with clip on existing wire and harness”*
**Water Resistance**3%
*“I suspected that water had got into the board as the membrane pad was peeling”*
### **Top return reasons **
**Functionality-Overall**26%
**Defective Material/Parts**19%
**Heating**9%
**Advertised Vs Actual Product**9%
**Size-Overall**8%
**Touch/Button Controls**6%
**Connectivity-Overall**5%
**Durability**3%
**Socket/Port/Plug**3%
**Assembly/Installation**3%
## **Common questions**
- **Is pentair mastertemp 400 control board profitable to sell on Amazon United States?**
- The niche generates $107K/yr across 21 tracked products. 4 of 7 products launched in the last 360 days are still selling. 90-day search growth is +28.3%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the pentair mastertemp 400 control board niche?**
- 15 brands and 38 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 64% of demand.
- **What do buyers complain about in pentair mastertemp 400 control board?**
- Top complaints mined from reviews: Durability, Heating, Value For Money. The return rate is 7.7% — above our launch gate.
- **When does demand for pentair mastertemp 400 control board peak?**
- Demand peaks in May; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the pentair mastertemp 400 control board niche?**
- Listings span $37.02–$447.44; the average listing price is $85.47 (sweet spot $15–$100). The average incumbent carries 22 reviews — the moat a new listing must climb.
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