GROW!T #3 Perlite, Super Coarse, 4 cu ft

Name: GROW!T #3 Perlite, Super Coarse, 4 cu ft
Brand: GROW!T
SKU: JSPERL34
Price: 66.93 USD
Availability: InStock

Vendor: GROW!T

Type: Grow!T Substrates

$66.93 USD

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Product Overview

GROW!T Perlite #3 (Super Coarse, 4 cu ft) is a professional-grade horticultural perlite with an even larger particle size than Grade #2, designed for the most demanding drainage and aeration requirements. Grade #3 is ideal as a standalone growing medium or as an amendment in high-porosity growing media where maximum air-to-water ratio is needed.

Key Features:

Grade #3 — largest particle size for extreme drainage and aeration
Ideal as a standalone medium or soil amendment
4 cubic foot bag for large-scale operations
pH neutral, inorganic, and sterile

Specifications

Volume: 4 cu ft | Brand: GROW!T | Grade: #3 Super Coarse | Type: Expanded perlite for drainage and aeration
Super coarse particle size (approx. 0.25-0.5 in) maximizes drainage and prevents compaction in potting mixes
Sterile, pH-neutral volcanic glass — no pathogens, no pH interference, and no degradation over time
Ideal for amending soil and coco mixes or as a standalone hydroponic substrate in drip and ebb-and-flow systems
4 cu ft commercial bag for large potting mix batches or bulk hydroponic substrate fills

Use & Care

Mix 20-50% perlite by volume into potting soil or coco coir to improve drainage and aeration
For hydroponic use: rinse before use and fill pots to provide excellent root oxygenation
Pre-wet before mixing to reduce dust — wear a dust mask when working with dry perlite in enclosed spaces
Reusable between crops — rinse and sterilize with 10% hydrogen peroxide solution between cycles
Store in a dry location — perlite is inert and does not expire but should be kept clean and dry

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