anti siphon valve
Worth a lookShows a sweet-spot price point ($19.88 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Great$19.88avg listing price — sweet spot $15–$100
Price range
Great$5.65–$79.61cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Great+73.4%90-day search growth — must beat 0% to launch
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good612.14avg incumbent reviews — the moat a new listing must climb
Returns
Good2.4%return rate — above 5% kills the launch gate
Brand share
Good69%top-5 brand share — brands hold most of the demand
Conversion
Good4.8%search→purchase rate — share of searches ending in a sale
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Market size
Bad$44K$44K/yr · 46K searches
According to Flapen's Amazon United States niche tracking, anti siphon valve is a $44K/yr Amazon United States market (46K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 58/100.
Data updated Jul 15, 2026 · scored weekly · How we score niches
anti siphon valve market data
- Units sold / yr
- 3K–3K
- avg 100–250/product
- Revenue / yr
- $50K–$60K
- units × avg price
- Conversion rate
- 4.8%
- Avg BSR
- #141
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 77%
- Out of stock
- 0.9%
- Avg brand age
- 73 months
- Avg seller age
- 158 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
61
Top-5 brand share
69%
Top 20: 100%
Top-5 click share
59%
Top 20: 98%
Open market
26%
- Eastman22%
- Orbit15%
- PILISPARK14%
- Ceoighe11%
- LitOrange6%
- SUNGATOR5%
Demand & seasonality
Weekly Amazon search volume, last 61 weeks — +73.4% search growth over the last 90 days.Peak months: Apr, May, Jun · busiest ÷ quietest = 3.3×
Top anti siphon valve search terms
- anti siphon valve24K/yr
- anti-siphon valve12K/yr
- anti siphon3K/yr
- anti syphon valve3K/yr
- antisiphon valve2K/yr
- antisiphon2K/yr
Top anti siphon valve 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 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Eastman 3/4 Inch FHT x 3/4 Inch MHT Hose Bibb Anti Siphon Vacuum Breaker Brass Plumbing Fitting 20199
Eastman$5.654.4★1,778 rev
PILISPARK Anti-Siphon Industrial-control-valves Repair Kit ASSE 1019-A Vacuum Breaker Check Valve Replacement Kits with Decorative Cover Plastic Body Plunger and O-Ring 1 Pack
PILISPARK$9.454.3★75 rev
Ceoighe 1 Pack Vacuum Breaker Repair Kit Replacement for VACVBKX1B Heavy Duty Metal Vacuum Breaker Replacement Kit for Traditional Anti Siphon Frost Free Sillcock Valves Anti Siphon Valve Repair Kit
Ceoighe$12.834.2★322 rev
1-Pack Orbit 57623 3/4 FPT 100 Series Anti-Siphon Automatic Sprinkler Valve with Flow Control
Orbit$16.904.4★1,868 rev
Litorange 2 Pack Brass 3/4 Inch GHT Hose Bibb Connector Backflow Preventer Vacuum Breaker
LitOrange$9.874.4★2,591 rev
Newest
by launch datePILISPARK Anti-Siphon Industrial-control-valves Repair Kit ASSE 1019-A Vacuum Breaker Check Valve Replacement Kits with Decorative Cover Plastic Body Plunger and O-Ring 1 Pack
PILISPARK$9.4575 rev
Young Dance Outdoor Faucets Repair Kit ASSE 1019-A Water Hose of Home Improvement ABS Plastic Anti-Siphon Valve Repair for Vacuum Breaker Outside Faucet1 Pack
Young Dance$10.6069 rev
3/4 Inch Backflow Preventer Pressure Vacuum Breaker Assembly Heavy Duty Brass Sprinkler Backflow Valve for Lawn Irrigation System Garden Water Line Outdoor Anti-Siphon Protection Max 400 PSI
YEE$79.6135 rev
PILISPARK ASSE 1019-A Outdoor Faucet Repair Kit with Teflon Tape Vacuum Breaker Replacement Kit Anti-Siphon Frost-Free Hose Bib Sillcock Valve Replacement1 Pack
PILISPARK$9.34162 rev
3/4 720A Pressure Vacuum Breaker Heavy-Duty Brass Backflow Preventer for Irrigation Systems Outdoor Faucet Hose Bib Anti-Siphon Protection 400 PSI
Drizzlen$75.8629 rev
Trending
90-day click momentumYoung Dance Outdoor Faucets Repair Kit ASSE 1019-A Water Hose of Home Improvement ABS Plastic Anti-Siphon Valve Repair for Vacuum Breaker Outside Faucet1 Pack
Young Dance$10.604.1★
PILISPARK Anti-Siphon Industrial-control-valves Repair Kit ASSE 1019-A Vacuum Breaker Check Valve Replacement Kits with Decorative Cover Plastic Body Plunger and O-Ring 1 Pack
PILISPARK$9.454.3★
Poolzilla (1 Pack) Inch Brass Anti-Siphon Control Valve - Compatible with Orbit and Other Major Brands- Easy-To-Rotate Control Handle and Full Flow-Control
Poolzilla$31.263.0★
3/4 720A Pressure Vacuum Breaker Heavy-Duty Brass Backflow Preventer for Irrigation Systems Outdoor Faucet Hose Bib Anti-Siphon Protection 400 PSI
Drizzlen$75.864.2★
Orbit 51023P 1 FPT Anti-Siphon Manual Sprinkler Valve
Orbit$11.644.3★
What buyers say about anti siphon valve
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Fits great and easy to install”
“It does not leak”
“As advertised”
“Good Price”
“was able to make it work”
“Installed in seconds”
“So far, durable this season”
“easy to follow”
“Easy and reliable repair”
What buyers complain about
“Keeps leaking”
“Too small”
“Poor quality control”
“bad assembly”
“Noisy”
“Does not work as expected”
“two failed within 36 months”
“I was able to get a less expensive one because it didn't any of the fittings on it”
“Overall, it does not do what it claims”
“Does not fit asse 1019 a”
Top return reasons
Common questions
- Is anti siphon valve profitable to sell on Amazon United States?
- The niche generates $44K/yr across 22 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is +73.4%. Flapen's verdict: Worth a look (58/100).
- How competitive is the anti siphon valve niche?
- 17 brands and 61 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in anti siphon valve?
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 2.4%.
- When does demand for anti siphon valve peak?
- Demand peaks in Apr–May–Jun; the busiest month runs 3.3× the quietest.
- What does it cost to enter the anti siphon valve niche?
- Listings span $5.65–$79.61; the average listing price is $19.88 (sweet spot $15–$100). The average incumbent carries 612 reviews — the moat a new listing must climb.