Shop |

Glass Block


4" Premiere™ Series


Cross Rib


8x8x4 Cross Rib

8x8x4 Cross Rib


SKU: 1420100000 Category:

Typical lead time: Typically in Stock



Actual Sizes: 7-3/4" x 7-3/4" x 3-7/8" Inch

Weight: 5.70

Heat Transmission U-Value (BTU/hr ft2 °F): .53

Thermal Resistance R-value: 1.89

Privacy: Moderate

Fire Rating: 45

Visible Light Transmission: 55%

Shading Coefficient: .65

Sound Transmission S.T.C. (dB): 39

Solar Heat Gain Coefficient: .66-.68



There are no reviews yet.

Be the first to review “8x8x4 Cross Rib”

Mortarless Accessories

Mortar Accessories