---
title: "Delta Rp73000 — $51K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/delta-rp73000"
last_updated: "2026-08-08T23:27:06.589Z"
locale: en
meta:
description: "Niche score 37/100 · $51K/yr market · 8K searches/yr · $34.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · $51K/yr market · 8K searches/yr · $34.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Delta Rp73000 — $51K/yr Amazon US Niche (2026) - Flapen"
---
# **delta rp73000**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 13Growth 16Conversion 99Competition 0Returns 3Price range 95Avg price 95Brand share 0Review moat 94Quality gap 87
**Conversion**
**Incredible****18.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$34.47**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$30.12–$43.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****129**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-17.0%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$51K**
$51K/yr · 8K searches
**Returns**
**Bad****11.2%**
return rate — above 5% kills the launch gate
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, delta rp73000 is a $51K/yr Amazon United States market (8K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 37/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **delta rp73000 market data**
- **Units sold / yr**
- **1K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$43K–$52K**
- units × avg price
- **Conversion rate**
- **18.1%**
- **Avg BSR**
- **#337**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **22.0%**
- **Avg brand age**
- **25 months**
- **Avg seller age**
- **221 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▲rising
**Sellers**
**14**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- DELTA53% - BANOSE16% - Wanyous14% - SOOLINEY10% - Mektarvix7%
## **Top delta rp73000 search terms**
- **delta rp73000**3K/yr-22.1%17.5% conv. - **rp73000 delta cartridge**2K/yr-6.6%18.6% conv. - **rp73000**2K/yr-21.0%16.6% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/delta-rp73000/search-terms)
## **Top delta rp73000 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%15%$8K30%$15K45%$23K60%$30K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**DELTA FAUCET RP73000 Delta Plumbing Replacement Parts Chrome**DELTA**$43.75**4.5★611 rev](https://www.amazon.com/dp/B009MLXCF8) [2**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Faucet Cartridges Valve Repair Kit Easy DlY Installation (Screws Included)**BANOSE**$30.12**3.5★11 rev](https://www.amazon.com/dp/B0G3QL6S2S) [3**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Faucets Cartridge Valve Repair Kit Easy DlY Installation Prevents Dripping**Wanyous**$31.97**3.9★9 rev](https://www.amazon.com/dp/B0GRTLTQ3N) [4**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Easy DlY Installation (Screws Included)**SOOLINEY**$31.53**4.0★8 rev](https://www.amazon.com/dp/B0FYNHZKQD) [5**Mektarvix Faucet Cartridge Replacement for Delta RP73000 & Brizo 11410 Compatible with Delta Trinsic/Zura Single-Handle Kitchen Lavatory Faucets (19835Z/9159T/T14251 Series) Leak-Proof Ceramic Disc**Mektarvix**$35.00**4.7★6 rev](https://www.amazon.com/dp/B0GMWPNSD5)
### **Newest**
by launch date
[**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Faucets Cartridge Valve Repair Kit Easy DlY Installation Prevents Dripping**Wanyous**$31.97**9 rev4mo ago](https://www.amazon.com/dp/B0GRTLTQ3N) [**Mektarvix Faucet Cartridge Replacement for Delta RP73000 & Brizo 11410 Compatible with Delta Trinsic/Zura Single-Handle Kitchen Lavatory Faucets (19835Z/9159T/T14251 Series) Leak-Proof Ceramic Disc**Mektarvix**$35.00**6 rev5mo ago](https://www.amazon.com/dp/B0GMWPNSD5) [**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Faucet Cartridges Valve Repair Kit Easy DlY Installation (Screws Included)**BANOSE**$30.12**11 rev8mo ago](https://www.amazon.com/dp/B0G3QL6S2S) [**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Easy DlY Installation (Screws Included)**SOOLINEY**$31.53**8 rev9mo ago](https://www.amazon.com/dp/B0FYNHZKQD) [**DELTA FAUCET RP73000 Delta Plumbing Replacement Parts Chrome**DELTA**$43.75**611 rev13y ago](https://www.amazon.com/dp/B009MLXCF8)
### **Trending**
90-day click momentum
[**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Faucets Cartridge Valve Repair Kit Easy DlY Installation Prevents Dripping**Wanyous**$31.97**3.9★**▲ 228%**](https://www.amazon.com/dp/B0GRTLTQ3N) [**Mektarvix Faucet Cartridge Replacement for Delta RP73000 & Brizo 11410 Compatible with Delta Trinsic/Zura Single-Handle Kitchen Lavatory Faucets (19835Z/9159T/T14251 Series) Leak-Proof Ceramic Disc**Mektarvix**$35.00**4.7★**▲ 111%**](https://www.amazon.com/dp/B0GMWPNSD5) [**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Faucet Cartridges Valve Repair Kit Easy DlY Installation (Screws Included)**BANOSE**$30.12**3.5★**▲ 51%**](https://www.amazon.com/dp/B0G3QL6S2S) [**RP73000 Faucet Cartridge for Delta Kitchen/Bathroom Faucet Cartridges Parts for Delta Plumbing Replacement Part Easy DlY Installation (Screws Included)**SOOLINEY**$31.53**4.0★**▲ 13%**](https://www.amazon.com/dp/B0FYNHZKQD) [**DELTA FAUCET RP73000 Delta Plumbing Replacement Parts Chrome**DELTA**$43.75**4.5★**▼ 28%**](https://www.amazon.com/dp/B009MLXCF8)
## **What buyers say about delta rp73000**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**23%
*“Fits perfectly”*
**Assembly/Installation**20%
*“Easy installation”*
**Leak-Proof**14%
*“This replacement cartridge solved a leaking faucet issue without having to replace the entire fixture”*
**Efficiency**7%
*“Works great”*
**Functionality-Overall**6%
*“Seemed fully functional just shouldve not tried to be cheap”*
**Quality-Overall**5%
*“Build quality appears comparable to the original part”*
**Advertised Vs Actual Product**5%
*“Worked as it should”*
**Value For Money**4%
*“Way less expensive than Deltas replacement part”*
**Ease Of Use**4%
*“Much easier now”*
**Product Condition**2%
*“This RP73000 cartridge fixed it like new”*
### **What buyers complain about **
**Leak-Proof**48%
*“Leaked out of the box”*
**Instructions/User Manual/Troubleshooting**11%
*“I knew I was taking a bit of risk ordering this because I had two conflicting parts diagrams from the manufacturer”*
**Defective Material/Parts**4%
*“rendering item useless”*
**Size-Overall**4%
*“Does not fit as advertised”*
**Quality-Overall**4%
*“Item missed quality assurance”*
**Advertised Vs Actual Product**4%
*“Does not fit as advertised”*
**Adhesion/Stickiness**2%
*“Our 8-year-old Delta faucet handle was getting incredibly sticky”*
**Ease Of Use**2%
*“hard to turn”*
**Assembly/Installation**2%
*“I spent more time setting up the project; tools, padding for keeping the bathroom counter protected and prepping prior to the replacement”*
**Grip**2%
*“the handle wouldn't budge”*
### **Top return reasons **
**Defective Material/Parts**26%
**Size-Overall**23%
**Leak-Proof**19%
**Compatibility-Overall**11%
**Functionality-Overall**7%
**Product Condition**4%
**Advertised Vs Actual Product**2%
**Mechanism Issues**1%
**Value For Money**1%
**Connectivity-Overall**1%
## **Common questions**
- **Is delta rp73000 profitable to sell on Amazon United States?**
- The niche generates $51K/yr across 5 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -17.0%. Flapen's verdict: Skip it (37/100).
- **How competitive is the delta rp73000 niche?**
- 5 brands and 14 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in delta rp73000?**
- Top complaints mined from reviews: Leak-Proof, Instructions/User Manual/Troubleshooting, Defective Material/Parts. The return rate is 11.2% — above our launch gate.
- **What does it cost to enter the delta rp73000 niche?**
- Listings span $30.12–$43.75; the average listing price is $34.47 (sweet spot $15–$100). The average incumbent carries 129 reviews — the moat a new listing must climb.
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