5/16 tubing
Worth a lookShows demand growing +111.1% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Growth
Incredible+111.1%90-day search growth — must beat 0% to launch
Conversion
Great10.0%search→purchase rate — share of searches ending in a sale
Avg price
Great$18.87avg listing price — sweet spot $15–$100
Price range
Great$5.98–$45.78cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.4%return rate — above 5% kills the launch gate
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Review moat
Good1,212.72avg incumbent reviews — the moat a new listing must climb
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$140K$140K/yr · 74K searches
According to Flapen's Amazon United States niche tracking, 5/16 tubing is a $140K/yr Amazon United States market (74K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 64/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
5/16 tubing market data
- Units sold / yr
- 8K–10K
- avg 100–250/product
- Revenue / yr
- $151K–$189K
- units × avg price
- Conversion rate
- 10.0%
- Avg BSR
- #145
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 2.7%
- Avg brand age
- 38 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
18 rising
Sellers
27
Top-5 brand share
76%
Top 20: 100%
Top-5 click share
47%
Top 20: 87%
Open market
20%
- CARPATHEN43%
- Eastman11%
- Bonviee9%
- Thiswing7%
- dewhush5%
- HEKIWAY5%
Demand & seasonality
Weekly Amazon search volume, last 56 weeks — +111.1% search growth over the last 90 days.Peak months: May, Jun, Jul · busiest ÷ quietest = 2.3×
Top 5/16 tubing search terms
- 5/16 tubing20K/yr
- 5/16 irrigation tubing8K/yr
- carpathen drip irrigation parts7K/yr
- 5/16 hose12K/yr
- carpathen drip irrigation system6K/yr
- 5/16 drip irrigation tubing4K/yr
- 5/16 id tubing6K/yr
- carpathen3K/yr
- 5/16 clear tubing4K/yr
- 5/16 od tubing3K/yr
Top 5/16 tubing 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
CARPATHEN 100ft Drip Irrigation Tubing - Mainline - (5/16 ID - 7/16 OD) Black PVC Water Line
CARPATHEN$25.724.6★369 rev
CARPATHEN Drip Irrigation System Kit - Complete Premium Garden Watering System with Adjustable Sprinkler Emitters 5/16 & 1/4 Tubing and Fittings - Drip Line for Raised Beds Lawn Pots Greenhouse
CARPATHEN$44.074.5★1,653 rev
Bonviee 50FT 5/16 Drip Irrigation Mainline Tubing with 4-Way Push-to-Connect Couplers (4 Pack) Compact DIY Garden Irrigation Distribution System for Misting Raised Beds & Small Spaces
Bonviee$25.264.3★905 rev
Eastman 5/16 Inch ID (7/16 Inch OD) PVC Clear Vinyl Tubing 20 Foot Length 98619
Eastman$9.764.6★5,421 rev
66FT 5/16in Drip Irrigation Hose for 360 Adjustable Drip Irrigation System Black High Density PE Drip Irrigation Tubing for Garden Lawn Yard Plants (0.24 ID - 0.31 OD)
dewhush$15.924.0★21 rev
Newest
by launch date
CARPATHEN Drip Irrigation System Kit - Complete Garden Irrigation Kit with 16pcs 360 Adjustable Atomizing Copper Nozzles - Watering Spray System for Raised Beds Potted Plants Greenhouse
CARPATHEN$28.4621 rev
66FT 5/16in Drip Irrigation Hose for 360 Adjustable Drip Irrigation System Black High Density PE Drip Irrigation Tubing for Garden Lawn Yard Plants (0.24 ID - 0.31 OD)
dewhush$15.9221 rev
5/16 Inch Blank Drip Irrigation Tubing 60FT Distribution Hose for Garden Greenhouse & Raised Beds Flexible UV-Resistant Watering Line for Drip Irrigation Systems
HEKIWAY$15.1611 rev
CARPATHEN Drip Irrigation System Kit - Complete Quick Connect Garden Watering System with Adjustable Sprinkler Emitters 5/16 & 1/4 Tubing - Drip Line for Raised Beds Greenhouse
CARPATHEN$45.781,658 rev
Bonviee 50FT 5/16 Drip Irrigation Mainline Tubing with 4-Way Push-to-Connect Couplers (4 Pack) Compact DIY Garden Irrigation Distribution System for Misting Raised Beds & Small Spaces
Bonviee$25.26905 rev
Trending
90-day click momentumCARPATHEN Drip Irrigation System Kit - Complete Quick Connect Garden Watering System with Adjustable Sprinkler Emitters 5/16 & 1/4 Tubing - Drip Line for Raised Beds Greenhouse
CARPATHEN$45.784.5★
CARPATHEN Drip Irrigation System Kit - Complete Garden Irrigation Kit with 16pcs 360 Adjustable Atomizing Copper Nozzles - Watering Spray System for Raised Beds Potted Plants Greenhouse
CARPATHEN$28.465.0★
Bonviee 50FT 5/16 Drip Irrigation Mainline Tubing with 4-Way Push-to-Connect Couplers (4 Pack) Compact DIY Garden Irrigation Distribution System for Misting Raised Beds & Small Spaces
Bonviee$25.264.3★
Upgraded 5/16 Drip Irrigation Kit (100FT) High-Flow Garden Watering System with 16 Bendable 360 Brass Misting Nozzles Quick-Push Connectors & Leak-Proof Design for Patio Greenhouse & Flower Beds
MYMULIKE$21.144.7★
66FT 5/16in Drip Irrigation Hose for 360 Adjustable Drip Irrigation System Black High Density PE Drip Irrigation Tubing for Garden Lawn Yard Plants (0.24 ID - 0.31 OD)
dewhush$15.924.0★
What buyers say about 5/16 tubing
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to install”
“Decent quality”
“Easy Peasy”
“Good value”
“It has helped us continue growing food”
“Helping me water easily”
“didn't leak at all”
“The tubing length was perfect for my garden”
“just what I needed”
“It feels durable”
What buyers complain about
“Right now just too big”
“Low quality”
“I was not able to assemble”
“The sprinkler head literally falls apart”
“Pipes had leakage”
“Not great limit flow”
“so I can't use it”
“Picture and description deceiving”
“Makes the attachment get stuck”
“When pressure is applied they just blow off the line”
Top return reasons
Common questions
- Is 5/16 tubing profitable to sell on Amazon United States?
- The niche generates $140K/yr across 32 tracked products. 6 of 7 products launched in the last 360 days are still selling. 90-day search growth is +111.1%. Flapen's verdict: Worth a look (64/100).
- How competitive is the 5/16 tubing niche?
- 18 brands and 27 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 76% of demand.
- What do buyers complain about in 5/16 tubing?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Assembly/Installation. The return rate is 2.4%.
- When does demand for 5/16 tubing peak?
- Demand peaks in May–Jun–Jul; the busiest month runs 2.3× the quietest.
- What does it cost to enter the 5/16 tubing niche?
- Listings span $5.98–$45.78; the average listing price is $18.87 (sweet spot $15–$100). The average incumbent carries 1,213 reviews — the moat a new listing must climb.