CrystalClear® TrueRock Small Boulder Covers 18"L x 16"W x 11"H

Please select an option.

  • Item: 510330 GREYSTONE
  • $112.49
  • Item: 510330 SANDSTONE
  • $112.49

Most Realistic Faux
Rock on the Market
Made in
the U.S.A.
FiberGlass Rocks
Protects All
KoiAir Aeration Kits
Built-In Vents
Protects Compressors



This amazing fiberglass rock cover looks and feels like the real thing! It's by far the most realistic rock cover on the market. The TrueRock Boulder Cover blends beautifully into any landscape and is the perfect solution for hiding KoiAir aeration compressors, skimmers, waterfall boxes or anything unsightly. Each TrueRock Boulder Cover is made and hand-painted in the USA, so every rock is unique. Available in Sandstone and Greystone colors to match any landscape.

Please Note: TrueRock Boulder Covers have an irregular shape. Before choosing a cover for an application, view this Sizing Guide for a list of interior usable dimensions for all models.


Tech Specs

Small Boulder Cover
Small Boulder Cover
Exterior Dimensions 18" L x 16" W x 11" H
Max. Cubic
Interior Dimensions
Covers Items up to
11"L x 8"W x 4"H
Weight 7 Pound
Vented? Yes
Available Colors Greystone or Sandstone
Interior Dimensions Click Here for Usable Interior Dimensions
Camouflages Any KoiAir Aeration Kits

Please note: These rocks are irregular in shape. The measurements above should be used as a guide for how large an item will fit under the rock. If the measurement is close, we recommend going up a size.


Accessories & Related Items




"Committed to Quality and Satisfaction ..."

CrystalClear is committed to product quality and your satisfaction. If you have any questions regarding the use of our products please don't hesitate to contact us. We would be happy to hear from you.

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Item Numbers and UPC

Item Number
UPC Code
510330 GREYSTONE 811262010719 Small Boulder Cover
510330 SANDSTONE 811262013284 Small Boulder Cover

Do You Still Have Questions?

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