Phifer 20x20 No-See-Um Screen product photo
Phifer

Phifer 20x20 No-See-Um Screen

Best for tiny bugs — A tighter 20x20 fiberglass weave that stops the no-see-ums, gnats, and sand flies standard 18x14 lets walk right through — the coastal/marshy Florida pick.

★ 4.3 · 42 owner ratings · Amazon · August 2026 · early data

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Specs

Mesh count20x20 fiberglass (tighter)
MaterialFiberglass
WarrantyDefect only (no year term)
StrengthFiberglass baseline
Roll widths36–72 in.
Best forNo-see-ums, sand flies, coastal lots
Owner rating4.3★ / 42 (Amazon)

Pros

  • Tighter 20x20 weave blocks no-see-ums, gnats, and sand flies that pass through standard 18x14
  • Genuine Phifer fiberglass; adds a little daytime privacy
  • The right upgrade for coastal, marsh-, or mangrove-adjacent Florida lots

Cons

  • Thin owner base (42 ratings = early data)
  • Slightly less airflow and visibility than 18x14, for ~10–15% more
  • Same fiberglass lifespan (~5–7 yr in FL) as standard mesh — the weave is tighter, not tougher
“The new screens will enable us to cool the house with windows open without letting the flies in.”— Scotty Joe, Amazon · Verified owner

FAQ

Who is the Phifer 20x20 No-See-Um Screen for?

You're coastal or near marsh and get bitten by bugs you can't see — the tighter 20x20 weave stops what standard mesh lets through.

What do owners say about the Phifer 20x20 No-See-Um Screen?

4.3★ across 42 owner ratings (Amazon, read August 2026 · early data).

What is the warranty on the Phifer 20x20 No-See-Um Screen?

Defect only (no year term)

Does the Phifer 20x20 No-See-Um Screen come with a manufacturer warranty?

Phifer publishes no warranty document anywhere we can find, so there is no manufacturer term to hold them to beyond the listing itself and the marketplace's own returns window. Nobody can check what does not exist — that is the finding rather than a gap in our research.

Warranty — and what changes if you buy it on Amazon

Defect only (no year term) · you are buying this on Amazon

Phifer publishes no warranty document anywhere we can find. There is no term to hold them to beyond the listing itself and the marketplace’s own returns window. Nobody can check what does not exist — that is the finding, not a gap in our research.

✓ Safety: no active recall — No active CPSC recall found (checked July 2026)

Data last verified: August 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.