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.
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Specs
| Mesh count | 20x20 fiberglass (tighter) |
| Material | Fiberglass |
| Warranty | Defect only (no year term) |
| Strength | Fiberglass baseline |
| Roll widths | 36–72 in. |
| Best for | No-see-ums, sand flies, coastal lots |
| Owner rating | 4.3★ / 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
✓ Safety: no active recall — No active CPSC recall found (checked July 2026)
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Data last verified: July 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.