No tools or fasteners required – Just slide 3-ft. sections into gutters

Easy DIY installation – No cutting or special skills needed

Fill the entire gutter for year-round protection – Prevents clogs and overflow

Reduces gutter cleaning – Keeps leaves and debris out, so water flows freely

Durable and long-lasting – Made in the USA since 2004, Money-Back Guarantee

Gutter Guard Sizing Samples and Downspout Guards

Gutter Guard Samples for sizing, by Gutterbrush

Try our innovative Gutter Protection! Our Brush Gutter Guard Samples arrive with short lengths to confirm the best fit for your needs. 

Gutter Guard Samples for Residential Gutters:

Gutter Protection for standard and larger gutters on homes; as well as smaller carport, mobile home, sunroom and lanai gutters.


Contains 6 Inch lengths of these sizes:

  • 5.25-inch diameter leaf guard for 6 Inch Gutters
  • 4.25-inch diameter leafguard for standard 5" Gutters
  • 3.25-inch dia. for Small 4" Gutters

Master Sample Pack  for Residential and Commercial Gutters:

Leaf guards for residential and larger commercial gutters on schools, churches and industrial metal buildings.

Contains 18 inch lengths of all sizes:

  • 8.00 inch diameter for commercial metal building gutters
  • 6.50 inch diameter for 7" gutters, super gutters
  • 5.25 inch diameter leaf guard for 6 Inch Gutters
  • 4.25 inch diameter leafguard for standard 5" Gutters
  • 3.25 inch diameter for Small 4" Gutters

How To Install Your Gutter Guard Samples: Set them into the gutter to compare brush gutter guard sizes. The brush should fill the width of the gutter as best as possible without overly compressing the bristles. A raised or "crowned" profile is desirable, however with a high outer gutter edge, a raised profile is not possible and not necessary for gutter clog protection.
If you know your size, your ready for leaf guard installation, click to order full boxes
Click to learn " How to Measure Gutters for Gutter Guards "
Click here to see GUTTER TYPES for which we highly recommend using sizing samples to assure the best fit.

Click here to shop all Gutterbrush sizes

Scroll down for Residential Gutter Guard Samples as well as Commercial sizing samples.  If you already know which gutter size you have,  instead you could get a 6 foot trial pack (limit one per household) .