Is the Sellstrom 37701 Replacement Window for 301 Series the right replacement window for a worn Sellstrom 301 crown?

Short answer: Yes, if you already own a Sellstrom 301 Series crown (or a compatible universal headgear) and just need to bring a scratched or hazed visor back to spec. It is a clear injection-molded polycarbonate lens that restores ANSI Z87.1 impact and splash coverage at a fraction of buying a whole new assembly — but it is a window only, with no crown or ratchet, so confirm your headgear before you order. If you do not yet own a crown, buy a complete shield from the face shields collection instead.

Sellstrom 37701 Replacement Window for 301 Series Review (2026)

The Sellstrom 37701 is not a face shield you wear — it is the consumable lens that snaps into a face shield you already own. Per the listing it is a clear, injection-molded polycarbonate window designed as a replacement for Sellstrom 301 Series face shields and various other brand crowns, so the right way to evaluate it is as a fitment and material question, not a comfort one. A face shield is always secondary protection worn over primary eyewear such as safety goggles under OSHA 1910.133 and ANSI/ISEA Z87.1, and the window is the part that actually takes the abuse — so it wears out first. Polycarbonate is the impact workhorse of visor materials, which makes the 37701 a sensible spare for grinding, machining and general splash work; if you are still choosing a system rather than feeding one, start with the best face shields guide or the how to choose a face shield primer before you buy a bare lens.

Editorial verdict — 4.1/5
As a like-for-like spare for a Sellstrom 301 Series crown it is good value — a few dollars of polycarbonate restores full Z87.1 coverage instead of replacing a working headgear assembly. Its only real risk is buyer error: order it for the wrong crown and it will not seat.VIEW ON WC SAFETY →CHECK PRICE ON AMAZON →

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Who it is for

• Owners of a Sellstrom 301 Series crown whose visor is scratched, hazed or cracked
• Grinders and machinists who burn through clear polycarbonate windows and want spares on the shelf — see the best face shields guide
• Chemical handlers and lab techs needing a fresh splash lens over their safety goggles
• Safety managers stocking consumables for a fleet of face shields rather than buying whole units
• Buyers comparing Sellstrom's own DP4 replacement window or 390 Series window to confirm they pick the lens that matches their crown

What the Sellstrom 37701 does well

Correct material for the job

The 37701 is injection-molded polycarbonate, the impact king among visor plastics — rated superior to acetate or propionate in ANSI Z87.1 high-impact testing. That makes it the right replacement for grinding, machining and general splash duty where a chip or crack in the old window is a real hazard.

Exact-fit replacement

Because it is cut specifically for Sellstrom 301 Series crowns, a matched window seats cleanly without the trimming or gapping you get from a generic lens. That tight fit is what preserves the seal and coverage the how to choose a face shield guide stresses for splash work.

Cheap way to stay compliant

Swapping a worn lens for a few dollars beats retiring a perfectly good ratchet crown. For a shop running several face shields, buying windows instead of whole assemblies keeps everyone in spec under OSHA 1910.133 at the lowest cost per refresh.

Keeps a broken-in headgear

Workers dial in their ratchet and tilt tension over time. Replacing only the window means they keep the crown they already trust instead of re-fitting a new one — a small but real comfort and productivity win over buying a complete Sellstrom Advantage shield.

Where the Sellstrom 37701 falls short

It is not a face shield

The single biggest pitfall: the 37701 ships as a bare window with no crown or ratchet. If you do not already own a Sellstrom 301 crown you cannot use it — buy a complete unit from the face shields collection instead.

Clear/uncoated, so it is a consumable

Plain polycarbonate scratches with abrasive dust and can fog in humid or cold-to-warm transitions. Expect to replace it again; an anti-fog complete shield like the Jackson MAXVIEW may suit foggy environments better.

Cross-brand fit is vague

The listing says 'various other brand crowns' but names none. Treat anything other than a Sellstrom 301 crown as unconfirmed and verify the mount before ordering, exactly as the how to choose a face shield guide advises.

Wrong lens for radiant heat

It is an impact/splash window, not an IR or shade lens. For torch, plasma or welding work you need a shaded window — see the best face shields for welding, grinding and cutting guide.

Sellstrom 37701 vs the competition

Compare prices on Amazon →Sellstrom 37701 on Amazon[Sellstrom 32100 DP4 w

When to step up from the Sellstrom 37701

If you want a window that fights fog and scratching better than plain clear polycarbonate, step into a complete anti-fog system such as the Jackson Safety 14201 MAXVIEW or compare crowns in the best face shields guide. If your hazard is radiant heat rather than impact, do not buy this clear window at all — move to a shaded IR window like the Fibre-Metal 4178IRUV3 shade 3.0 and read the welding, grinding and cutting guide. And if you are missing the crown entirely, a complete Sellstrom DP4 shield gives you headgear plus lens in one box.

Category context

Face shields split into three buying problems, and the 37701 sits squarely in the third. There are complete shields (window plus headgear, like the Honeywell Uvex Bionic or a Sellstrom Advantage); there is headgear/crowns sold on their own; and there are replacement windows like this one. Material is what decides hazard fit: polycarbonate is the impact and general-purpose splash choice, PETG and propionate lean toward chemical splash, steel mesh handles heat and brush/forestry, and IR/shade-numbered windows are for welding and torch radiant heat. The 37701 is clear polycarbonate, so it covers impact and incidental splash but not radiant heat. Mount style is the other axis — ratchet crowns, hard-hat slot adapters and speedy-loop systems are not interchangeable — which is why a window is only ever 'universal' within the systems its maker lists. Ground yourself in how to choose a face shield and what Z87+ means before matching a bare lens to a crown.

Total cost of ownership

A replacement window is a maintenance line item, not a one-time purchase. Clear polycarbonate windows in abrasive trades — grinding, concrete, masonry — can haze or scratch enough to swap monthly or even weekly under heavy use, while occasional splash duty may stretch a window for many months. That recurring cost is exactly why buying the 37701 as a spare beats replacing the whole assembly: the ratchet crown typically outlasts many windows, so you amortize one durable headgear over a stack of cheap lenses. Stock two or three per active crown so a scratched window never becomes an excuse to work without protection, and keep them alongside your other face shield and safety goggle consumables. If your team keeps fogging or gouging clear windows, the cheaper long-run move may be a coated complete shield from the best face shields guide.

Final verdict

Buy the Sellstrom 37701 if you own a Sellstrom 301 Series crown and need to bring a scratched or hazed visor back to ANSI Z87.1 spec — it is the correct, exact-fit, impact-grade polycarbonate replacement and the cheapest way to keep a good headgear in service. Do not buy it if you lack the crown (get a complete unit from the face shields collection), if your hazard is radiant heat (choose a shaded welding window instead), or if you run a different brand's headgear — confirm the mount first, then cross-check Sellstrom's own DP4 and 390 Series windows so you order the lens that actually fits your crown.

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Sellstrom 37701 FAQ

What is the Sellstrom 37701, exactly?

It is a replacement window — a clear, injection-molded polycarbonate lens, not a complete face shield. Per the listing it is designed for Sellstrom 301 Series face shields and various other brand crowns, so it snaps into a headgear you already own. If you need both the lens and the crown, buy a complete unit from the face shields collection.

Does the 37701 come with headgear or a crown?

No. It is the window only, with no ratchet crown, suspension or hard-hat adapter in the box. You must already own a compatible Sellstrom 301 Series crown; otherwise the lens is unusable on its own.

Which headgear does the Sellstrom 37701 fit?

It is cut for Sellstrom 301 Series face shields and is listed as compatible with various other brand crowns. Because those other crowns are not named, treat any non-Sellstrom-301 fit as unconfirmed and verify the mount before ordering, following the how to choose a face shield guidance.

What is the window made of and what hazards does it cover?

Injection-molded polycarbonate — the highest-impact common visor material, rated superior to acetate or propionate in ANSI Z87.1 high-impact testing. That makes it right for grinding, machining and general splash work, but not for radiant heat or welding.

Can I use the 37701 for welding or torch cutting?

No. It is a clear impact/splash window with no shade number, so it offers no protection against the radiant heat and bright light of welding, plasma or torch work. For those hazards you need a shaded IR window such as the Fibre-Metal 4178IRUV3 — see the welding, grinding and cutting guide.

Is a face shield with this window enough eye protection by itself?

No. A face shield is secondary protection and must be worn over primary eyewear such as safety glasses or goggles under OSHA 1910.133. The window guards the broader face; your glasses or goggles still guard the eyes. The safety glasses vs face shields guide explains why.

How do I know my old window needs replacing?

Swap it when it is scratched enough to blur vision, hazed or yellowed, cracked, chipped, or has lost optical clarity — any of which can compromise Z87.1 protection. A degraded window is a real hazard, not a cosmetic issue, which is the whole reason a cheap replacement like the 37701 exists.

How often will I need to replace it?

It depends on the work. In abrasive trades — grinding, concrete, masonry — a clear polycarbonate window can haze in weeks, while light splash duty may last many months. Stocking spares per crown keeps a worn window from becoming an excuse to skip protection; see the cost notes in the best face shields guide.

Is the 37701 anti-fog or hard-coated?

The listing facts do not state an anti-fog or hard-coat treatment, so assume it is uncoated clear polycarbonate. If fogging is a recurring problem, a complete anti-fog system such as the Jackson Safety 14201 MAXVIEW may serve you better.

How is the 37701 different from the Sellstrom 32100 DP4 window?

Both are clear polycarbonate Sellstrom replacement windows, but they fit different crowns: the 37701 is for the 301 Series, while the 32100 is for the DP4 series. Match the window to the crown you actually own — they are not interchangeable.

How does it compare to the Sellstrom 35000 390 Series window?

Same idea, different system. The 35000 is the replacement window for Sellstrom 390 Series crowns, whereas the 37701 fits the 301 Series. Confirm your crown's series before ordering either.

Will a Jackson or Honeywell window fit my Sellstrom 301 crown instead?

You should not assume so. Window-to-crown fit is system-specific — a Jackson 30706 window is cut for Jackson headgear and a Honeywell A8150/40 for Uvex frames. For a Sellstrom 301 crown, the Sellstrom 37701 is the safe match.

Is polycarbonate better than propionate or acetate for this window?

For impact, yes — polycarbonate is rated superior to acetate or propionate in ANSI Z87.1 high-impact testing, which is why it is the default for grinding and machining. Propionate windows are often chosen for certain chemical and welding-frame applications; the how to choose a face shield guide covers the trade-offs.

Does replacing just the window keep me OSHA compliant?

A fresh, correctly fitted Z87.1 window in a sound crown restores the protection OSHA 1910.133 requires, so yes — provided the crown itself is undamaged and you still wear primary eyewear underneath. Replacing only the consumable lens is a legitimate, cost-effective way to stay in spec.

What does the Z87 marking on the window mean?

It indicates the window meets ANSI/ISEA Z87.1 for occupational eye and face protection, with a plus sign denoting high-velocity impact. Read what Z87+ means and the fuller ANSI Z87.1 explained primer to interpret the marks before relying on any window.

Should I buy this window or a whole new face shield?

If your crown is sound, the window is the smart buy — it is far cheaper and keeps your broken-in headgear. If the crown is cracked, the ratchet is failing, or you do not own one, buy a complete shield such as a Sellstrom DP4 or compare options in the best face shields guide.

Is the 37701 good value?

For owners of a Sellstrom 301 crown, yes — a few dollars of polycarbonate restores full coverage instead of replacing a working assembly, and the durable crown amortizes across many windows. The only way to waste money on it is to order it for the wrong crown, so verify fit first.