---
title: "Rule 500 Gph Bilge Pump — $320K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/rule-500-gph-bilge-pump"
last_updated: "2026-08-12T03:03:48.427Z"
locale: en
meta:
description: "Niche score 56/100 · $320K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $320K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Rule 500 Gph Bilge Pump — $320K/yr Amazon US Niche (2026) - Flapen"
---
# **rule 500 gph bilge pump**
**Worth a look**
Shows demand growing +75.0% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 52Growth 81Conversion 62Competition 50Returns 65Price range 33Avg price 80Brand share 16Review moat 78Quality gap 47
**Growth**
**Great****+75.0%**
90-day search growth — must beat 0% to launch
**Avg price**
**Great****$86.04**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****436.37**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****5.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$320K**
$320K/yr · 68K searches
**Competition**
**Okay****55%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****$14.64–$270.92**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, rule 500 gph bilge pump is a $320K/yr Amazon United States market (68K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 56/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rule 500 gph bilge pump market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$258K–$344K**
- units × avg price
- **Conversion rate**
- **5.5%**
- **Avg BSR**
- **#42**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **52%**
- **Out of stock**
- **1.0%**
- **Avg brand age**
- **84 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **—flat
**Sellers**
**164**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 92%
**Open market**
**5%**
- Rule81% - SEAFLO7% - Jabsco3% - Amarine Made2% - Sanuke2% - IZTOR2% - Open — no brand owns it (4 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +75.0% search growth over the last 90 days.
2K2KSpike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: May, Jun, Jul · busiest ÷ quietest = 3.3×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/rule-500-gph-bilge-pump/trend)
## **Top rule 500 gph bilge pump search terms**
- **rule bilge pump**40K/yr+81.8%3.9% conv. - **rule 500 gph bilge pump**6K/yr+111.4%7.0% conv. - **rule automatic bilge pump**7K/yr+73.2%4.5% conv. - **500 gph bilge pump**4K/yr+74.5%6.0% conv. - **rule bilge pumps**4K/yr+84.4%2.4% conv. - **rule bilge pumps for boats**5K/yr-8.3%3.6% conv. - **rule pump**3K/yr+31.5%1.6% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/rule-500-gph-bilge-pump/search-terms)
## **Top rule 500 gph bilge pump 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%4%$13K8%$26K12%$38K16%$51K101001K10K 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**500 Gph Rule Bilge Pump**Rule**$29.43**4.6★695 rev](https://www.amazon.com/dp/B01LZ5HQ2W) [2**Rule 1500 Pump 12V**Rule**$101.84**4.8★821 rev](https://www.amazon.com/dp/B000O8B6DI) [3**500 Gph Rule Automatic Bilge Pump**Rule**$80.86**4.3★700 rev](https://www.amazon.com/dp/B01LZSYF42) [4**RULE 2000 PUMP 12V**Rule**$140.19**4.7★559 rev](https://www.amazon.com/dp/B000O89BCQ) [5**1100 Gph Rulemate Auto Bilge Pump**Rule**$117.96**4.5★175 rev](https://www.amazon.com/dp/B07L3K5VMP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**FengyingRise 1100GPH Bilge Pump with Float Switch & 1-1/8 Inch Hose Kit - High-Flow Fully Submersible Pump Automatic On/Off Switch and Durable Corrugated Hose for Boats Yachts Dinghies**FengyingRise**$46.69**27 rev1y ago](https://www.amazon.com/dp/B0DCF9KV34) [**NEWMAIX 12V 2000GPH Automatic Electric Bilge Pump Marine Boat Submersible Water Pump with Built in Float Switch**NEWMAIX**$64.66**37 rev2y ago](https://www.amazon.com/dp/B0CK17TC8K) [**Sanuke 500GPH Bilge Pump for Boats 3/4(19mm)Outlet 12V Manual Water Pump**Sanuke**$14.64**62 rev4y ago](https://www.amazon.com/dp/B0B41KF6DV) [**1100 Gph Rulemate Auto Bilge Pump**Rule**$117.96**175 rev7y ago](https://www.amazon.com/dp/B07L3K5VMP) [**Rule-Mate Automatic Submersible Bilge Pumps 12V RM500B- 500GPH with Auto Sense Intelligence - Thermal Cut-Off & Backflow Prevention - Compact Design for Boats - Easy Install Threaded Discharge**Rule**$64.78**183 rev7y ago](https://www.amazon.com/dp/B07L3JG61Y)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Rule Mate 800 12 Volts**Rule**$89.05**4.4★**▲ 43%**](https://www.amazon.com/dp/B07L3LCHYF) [**FengyingRise 1100GPH Bilge Pump with Float Switch & 1-1/8 Inch Hose Kit - High-Flow Fully Submersible Pump Automatic On/Off Switch and Durable Corrugated Hose for Boats Yachts Dinghies**FengyingRise**$46.69**4.7★**▲ 41%**](https://www.amazon.com/dp/B0DCF9KV34) [**1100 Gph Rule Bilge Pump**Rule**$57.15**4.5★**▲ 30%**](https://www.amazon.com/dp/B01LXUOWCN) [**Rule 800 GPH 20SA Electronic Sensing Bilge Pump-800**Jabsco**$96.82**4.4★**▲ 27%**](https://www.amazon.com/dp/B01LZSZE5O) [**Rule-Mate Automatic Submersible Bilge Pumps 12V RM500B- 500GPH with Auto Sense Intelligence - Thermal Cut-Off & Backflow Prevention - Compact Design for Boats - Easy Install Threaded Discharge**Rule**$64.78**4.2★**▲ 22%**](https://www.amazon.com/dp/B07L3JG61Y)
**~~View all trending →~~**
## **What buyers say about rule 500 gph bilge pump**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Very well made”*
**Value For Money**11%
*“Great price”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Size-Overall**10%
*“Perfect fit”*
**Efficiency**10%
*“Seaflo bilge pump works good”*
**Durability**8%
*“It feels durable”*
**Noise Level**4%
*“No noise”*
**Ease Of Use**4%
*“It would be much more convenient”*
**Assembly/Installation**3%
*“Works well and easy to install”*
**Mounting**2%
*“match my current mounting just fine”*
### **What buyers complain about **
**Durability**32%
*“Broke immediately”*
**Functionality-Overall**14%
*“Auto feature doesnt work”*
**Buoyancy**8%
*“Float operation not great”*
**Quality-Overall**6%
*“I'll try one more in case mine was poor quality control”*
**Noise Level**5%
*“This pump is extremely loud compared to the Rule pumps I have used in the past”*
**Size-Overall**4%
*“Hose outlet was to large no 5/8 tube”*
**Leak-Proof**4%
*“We have a permanent slow leak in our boat that we keep in a boat slip all summer”*
**Connectivity-Overall**4%
*“Gets plugged too easily”*
**Storage Capacity**4%
*“Very small for the capacity”*
**Assembly/Installation**4%
*“low say to install”*
### **Top return reasons **
**Size-Overall**39%
**Functionality-Overall**18%
**Compatibility-Overall**9%
**Defective Material/Parts**7%
**Product Condition**5%
**Value For Money**4%
**Advertised Vs Actual Product**4%
**Assembly/Installation**2%
**Durability**2%
**Mounting**1%
## **Common questions**
- **Is rule 500 gph bilge pump profitable to sell on Amazon United States?**
- The niche generates $320K/yr across 27 tracked products. 90-day search growth is +75.0%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the rule 500 gph bilge pump niche?**
- 10 brands and 164 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in rule 500 gph bilge pump?**
- Top complaints mined from reviews: Durability, Functionality-Overall, Buoyancy. The return rate is 2.4%.
- **When does demand for rule 500 gph bilge pump peak?**
- Demand peaks in May–Jun–Jul; the busiest month runs 3.3× the quietest.
- **What does it cost to enter the rule 500 gph bilge pump niche?**
- Listings span $14.64–$270.92; the average listing price is $86.04 (sweet spot $15–$100). The average incumbent carries 436 reviews — the moat a new listing must climb.
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