Check the listing for details. P SCROG Screen 20-Pack - (5.00" openings) 25% discount - only $18.95/screen. Condition: New. Listed at 379.00 USD. Manufactured in the USA by SCROGGER Patented Design Each bulk pack contains 20 individual polycarbonate 5.00" opening screens. P SCROG Screens now offered by SCROGGER are a low cost alternative to our portable P SCROG System. The P SCROG screens can be used with a large array of round and square grower supplied containers. Simply add plant stakes and zip ties to enjoy all of the benefits of the P SCROG polycarbonate screen. P SCROG screens treat plants individually, optimizing each plant and strain potential. P SCROG screens are virtually indestructible and can be used over and over resulting in very low costs per grow, comparable to trellis net*. MAX YIELD MADE SIMPLE INSTALL IN MINUTES Fits most round or square containers Support Screen (20 screens per package) The P SCROG support screen is approximately 21" square with 16 - 5" openings to provide optimal support to swelling flowers. Polycarbonate (PC) Screen Clear - substantially all light transfers to plant canopy, better light transfer than some glass, little to no light transfer degradation with age Durable - high impact resistance, high temperature tolerance profile, flexible Rigid - improved plant support structure compared to netting or wire Memory - holds shape Opening size - optimal 5" for swelling flower support Screen dimensions 21" x 21"- fits within logical grow space footprints while leaving room for overflow vegetation, for growers' hands and ease of portability Cheap, inexpensive, low cost, budget, DIY Scrog MAX YIELD MADE SIMPLE INSTALLS IN MINUTES