KH778 Inside Outside Clear Cover Lens Kit 20 Pack - Durable Clear

In this review the KH778 Inside Outside Clear Cover Lens Kit is evaluated for welders and hobbyists who need a low-cost way to keep their helmets' filter lenses clear and scratch-free. The kit is notable because it provides 20 clear polycarbonate covers made from certified EGR premium material that are ANSI Z87.1 compliant, so the single biggest reason to buy is straightforward: reliable, shatter-resistant protection that prolongs costly filter lenses and keeps viewports transparent during routine welding work.

Key Features

• Certified polycarbonate: Made from EGR premium polycarbonate so users get strong, shatter-resistant covers that handle typical shop impacts.
• ANSI Z87.1 compliance: The ANSI rating provides reassurance that the material meets clear safety standards for eye protection accessories.
• Inside and outside pieces: The kit includes both inside and outside covers to protect filter lenses from scratches and weld spatter on both sides of the viewport.
• Clear, transparent view: Completely transparent clarity preserves the view of the filter lens without introducing tint or distortion during setup and grinding.
• Multiple sizes in one pack: The set supplies various cover sizes and quantities (10 inside pieces and 10 outside pieces) to fit a range of compatible helmet models listed by the manufacturer.
• Warranty coverage: A 90-day guarantee against defects offers basic protection against manufacturing issues for new buyers.

Who It's For

The KH778 kit is best for professional and hobby welders who already own a compatible welding helmet (models such as those in the compatibility list) and want an economical way to keep the main filter lens in service longer. Shops that handle frequent welding or grinding will appreciate having 20 covers on hand for routine replacement.

It is less useful for welders who need tinted or auto-darkening outer covers, or for those seeking thicker multi-layer specialty shields; this kit is focused on clear polycarbonate protective covers rather than optical filters or shade-rated lenses.

Pros & Cons

Pros

• Durable, shatter-resistant polycarbonate construction helps prevent damage from sparks and debris.
• ANSI Z87.1 compliance and certified materials give confidence in basic safety performance.
• Kit includes inside and outside covers to protect both surfaces of the filter lens.
• Clear, transparent material maintains the view without tinting or distortion.

Cons

• The covers are thin at 0.04 in and intended as sacrificial protection, so frequent replacement is expected in heavy-use environments.
• Sizes are specific; users must confirm compatibility with their helmet model before purchase.

Specifications

Material	Certified EGR premium polycarbonate
Standards	ANSI Z87.1
Quantity	20 covers per pack (inside and outside pieces)
Inside cover size	1.87 in x 3.83 in x 0.04 in (10 pcs)
Outside cover size	3.59 in x 4.41 in x 0.04 in (10 pcs)
Compatible helmets	Fits listed replacement models including K3419-1, K3063-1, K2799-1, K2933-1, K2934-1

Our Verdict

The KH778 20-pack cover kit is a practical, cost-effective choice for welders who want to protect and extend the life of their filter lenses. With certified polycarbonate construction and both inside and outside pieces included, it delivers clear protection and straightforward compatibility for many common helmets, making it good value for shops and hobbyists who need regular replacements.

Frequently Asked Questions

Will these covers fit my helmet model?
They fit the compatible models listed by the manufacturer; check your helmet model number against the provided compatibility list before purchasing.

How thick are the covers?
Each cover is approximately 0.04 in thick and intended as a protective sacrificial layer against scratches and spatter.

Do these covers affect clarity or tint?
No, the covers are completely clear polycarbonate and are designed to preserve the view without adding tint or optical distortion.