Grodan Macroplugs, Round 1.5"x1.57" Quantity:35 packs of 50 Plugs High total porosity (approximately 85%

High total porosity (approximately 85% by volume) provides excellent root ventilation and oxygenation to plants

The tip shutoff switch engages at an angle of 30¡ +/-5¡

Derived from: Potassium Silicate

Ergonomic design reduces stress to the hand

Every element in Grow A & B plays a role in helping to produce the best quality plant and growth rate

Grodan Macroplugs, Round 1.5"x1.57" Quantity:35 packs of 50 Plugs High total porosity (approximately 85%Grodan 1. 5" x 1. 57" Round Macroplugs are rockwool plant starting plugs featuring a slit for easy insertion of rooted cuttings. Ideal for growers using aeroponic machines. They fit perfectly into the holes of any standard rockwool blocks, inserted into pebbles or other type of growing media.