---
title: "Dishwasher Water Supply Line — $111K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/dishwasher-water-supply-line"
last_updated: "2026-08-09T05:25:05.687Z"
locale: en
meta:
description: "Niche score 40/100 · $111K/yr market · 56K searches/yr · $14.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $111K/yr market · 56K searches/yr · $14.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Dishwasher Water Supply Line — $111K/yr Amazon US Niche (2026) - Flapen"
---
# **dishwasher water supply line**
**Skip it**
Strong incumbent ratings (4.7★) — this niche doesn't clear our bar today.
Market size 27Growth 23Conversion 96Competition 25Returns 34Price range 61Avg price 69Brand share 33Review moat 78Quality gap 16
**Conversion**
**Incredible****13.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****440**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****$14.29**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$9.44–$23.66**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Okay****4.3%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$111K**
$111K/yr · 56K searches
**Competition**
**Okay****70%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-3.5%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, dishwasher water supply line is a $111K/yr Amazon United States market (56K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 40/100.
Data updated Jul 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **dishwasher water supply line market data**
- **Units sold / yr**
- **6K–8K**
- avg 500–750/product
- **Revenue / yr**
- **$86K–$114K**
- units × avg price
- **Conversion rate**
- **13.9%**
- **Avg BSR**
- **#165**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **88%**
- **Out of stock**
- **7.1%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **185 days**
## **Competition & brand share**
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**20**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**11%**
- Eastman43% - HYDRO MASTER29% - EFIELD6% - AMI PARTS4% - KAINGA4% - SPUREST4% - Open — no brand owns it (5 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 105 weeks — -3.5% search growth over the last 90 days.
2K1KBlack Friday '24Holiday '24Prime Day '25Black Friday '25Holiday '25Prime Day '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/appliances/dishwasher-water-supply-line/trend)
## **Top dishwasher water supply line search terms**
- **dishwasher water supply line**24K/yr-8.5%10.0% conv. - **dishwasher supply line**18K/yr+6.2%8.0% conv. - **dishwasher supply line 6ft**6K/yr+5.6%12.7% conv. - **dishwasher water line**7K/yr-16.7%9.0% conv. [**All search terms **](https://flapen.com/research/us/appliances/dishwasher-water-supply-line/search-terms)
## **Top dishwasher water supply line 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%$22K30%$33K40%$44K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hydro Master Braided Stainless Steel Dishwasher Connector with Elbow 72 inches 3/8 Comp x 3/8 Comp**HYDRO MASTER**$13.83**4.8★820 rev](https://www.amazon.com/dp/B07QJF64HR) [2**Eastman 5 Ft. Dishwasher Installation Kit Braided Stainless Steel Supply Line with 3/8 Inch Compression Ends 41041**Eastman**$13.48**4.7★1,672 rev](https://www.amazon.com/dp/B01KAEN0VQ) [3**Eastman 6 foot Dishwasher Supply Line 3/8 Inch Compression x 3/4 Inch FHT Elbow Braided Stainless Steel Dishwasher Connectors 41043**Eastman**$12.99**4.7★674 rev](https://www.amazon.com/dp/B0030FKVNI) [4**Eastman 6 Ft. Dishwasher Installation Kit Braided Stainless Steel Supply Line with 3/8 Inch Compression Ends 3-Prong Straight Power Cord 41150**Eastman**$23.66**4.7★1,427 rev](https://www.amazon.com/dp/B07RL3RQ2N) [5**Dishwasher Supply Line Kit 6 FT Stainless Steel Braided Hose**AMI PARTS**$13.20**5.0★20 rev](https://www.amazon.com/dp/B0FVRXSV5S)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SAQXK 6 ft Dishwasher Water Supply Line 3/8 Compression x 3/4 FHT**SAQXK**$10.37**2 rev6mo ago](https://www.amazon.com/dp/B0G6SS5SWB) [**6FT Dishwasher Water Supply Line 3/8 x 3/8 Brass Compression Connections**Mokleba**$13.89**8 rev7mo ago](https://www.amazon.com/dp/B0G2BWZ285) [**6FT Stainless Steel Dishwasher Supply Line for Water Connection**FRIGESWIFT**$11.84**14 rev8mo ago](https://www.amazon.com/dp/B0FWQQRV5D) [**Dishwasher Supply Line Kit 6 FT Stainless Steel Braided Hose**AMI PARTS**$13.20**20 rev8mo ago](https://www.amazon.com/dp/B0FVRXSV5S) [**KAINGA 6 FT Dishwasher Installation Kit Braided Stainless Steel Dishwasher Water Supply Line with 3/8 Compression Dishwasher Connectors Burst-Resistant Inner Tube Certified Safe**KAINGA**$14.08**50 rev12mo ago](https://www.amazon.com/dp/B0FH48JBFJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SAQXK 6 ft Dishwasher Water Supply Line 3/8 Compression x 3/4 FHT**SAQXK**$10.37**5.0★**▲ 269%**](https://www.amazon.com/dp/B0G6SS5SWB) [**Dishwasher Supply Line Kit 6 FT Stainless Steel Braided Hose**AMI PARTS**$13.20**5.0★**▲ 245%**](https://www.amazon.com/dp/B0FVRXSV5S) [**Highcraft CNCT28760-OM Connector Connects Dishwasher to Water Dishwsher Supply Line with Swivel Elbow Braided Stainless Steel 60 in 60 Inch**HIGHCRAFT**$9.44**4.6★**▲ 240%**](https://www.amazon.com/dp/B01BTY6716) [**6FT Dishwasher Water Supply Line 3/8 x 3/8 Brass Compression Connections**Mokleba**$13.89**4.8★**▲ 224%**](https://www.amazon.com/dp/B0G2BWZ285) [**Dishwasher Installation Kit - 8 FT Supply Line with Brass Elbows & Adapters**SPUREST**$17.23**4.8★**▲ 200%**](https://www.amazon.com/dp/B0DM5SC3VH)
**~~View all trending →~~**
## **What buyers say about dishwasher water supply line**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**34%
*“High quality hose”*
**Advertised Vs Actual Product**30%
*“As advertised”*
**Value For Money**10%
*“Good Price”*
**Leak-Proof**8%
*“did not leak like the others I tried”*
**Size-Overall**6%
*“Compression fitting fit perfect without having to over tighten, just snug, no leaks”*
**Flexibility**2%
*“Sturdy, Flexible, And Inexpensive”*
**Correct Contents**2%
*“All parts are good in order”*
**Connectivity-Overall**2%
*“Correct connection”*
**Ease Of Use**1%
*“Quick n easy”*
**Durability**1%
*“I can tell it is quite durable”*
### **What buyers complain about **
**Leak-Proof**40%
*“only to find that this one also leaks”*
**Size-Overall**30%
*“Didnt fit”*
**Advertised Vs Actual Product**20%
*“This was not made clear in the listing”*
**Compatibility-Overall**10%
*“bad fitting. this did not fit my machine”*
### **Top return reasons **
**Size-Overall**50%
**Compatibility-Overall**13%
**Leak-Proof**7%
**Value For Money**6%
**Assembly/Installation**5%
**Defective Material/Parts**4%
**Connectivity-Overall**4%
**Functionality-Overall**3%
**Advertised Vs Actual Product**3%
**Quality-Overall**2%
## **Common questions**
- **Is dishwasher water supply line profitable to sell on Amazon United States?**
- The niche generates $111K/yr across 17 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -3.5%. Flapen's verdict: Skip it (40/100).
- **How competitive is the dishwasher water supply line niche?**
- 11 brands and 20 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in dishwasher water supply line?**
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Advertised Vs Actual Product. The return rate is 4.3%.
- **When does demand for dishwasher water supply line peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the dishwasher water supply line niche?**
- Listings span $9.44–$23.66; the average listing price is $14.29 (sweet spot $15–$100). The average incumbent carries 440 reviews — the moat a new listing must climb.
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