• 888-815-9763 Sales & Support Mon - Fri, 8am - 5pm PST. Instagram Facebook Twitter Google + Youtube



Save Now on Top Brands Like Twister, CenturionPro and Trimpro... Up To $600 off! Shop Now


Pargro Quick Drain 6"x6"x4" Jumbo Block

Item #: 713250-INDV

Be the first to review this product

Your Price:

In Stock

In stock items ship within 24 hours
  • Buy 5 for $4.00 each and save 7%
  • Buy 10 for $3.75 each and save 13%

100% Discreet Shipping Price Match Guarantee The HB Difference

Warranties | Returns & Replacements

Pargro Quick Drain 6"x6"x4" Jumbo Block

Additional Images


Product Documents

Grodan Pargro Rock Wool MSDS

Pargro is the leader among affordable horticultural rockwool.

Made right in the Grodan factory, you can be assured of a high quality product at a great price. Pargro Quick Drain (QD) blocks are up to 14% drier than Cultilene Comfort blocks. Pargro QD slabs are up to 10% drier than our previous Neptune slabs. Jumbo is a particularly good choice when you want to use a big block in an ebb and flow system. If you want a drier top, then opt for the Biggie in your system, since capillary movement will generally not reach above 4 in a block on most flood tables.


  • Driest value-priced rockwool on the market
  • 14% drier than competitor blocks


  • Value priced - no frills saves you money
  • Half case sizes in plain boxes


  • Cheap in price by not in strength and uniformity
  • Made under quality control at Grodan factories.


Brand Pargro
SKU 713250-INDV
Weight (lb.) 0.3
Length (in.) 8
Width (in.) 8
Height (in.) 8
Free Shipping No
Grow Media Rockwool
OMRI Certified No

Pargro Quick Drain 6"x6"x4" Jumbo Block Videos

Shipping Info:

Ships Via FedEx/UPS

Questions about this product?
Contact us for advice or more details. Our product specialists are here to help.
Email an Expert
Report an issue on this page

Why Shop with Hydrobuilder?
We offer the best service and support in the industry. Your complete satisfaction is our goal.