90% Black Privacy / Wind Screen Style:4" Shorter standard check valve with purple

standard check valve with purple pin opens at 28 PSI and closes at 13 PSI

Designed specifically for repairing damaged film on greenhouses

and sizes of Dillen hanging baskets

Let greenhouse wind control strapping do its job

enhancing growth

90% Black Privacy / Wind Screen Style:4" Shorter standard check valve with purpleDescription Specs FAQs **Please choose whether you want the full width (4 ft, 5ft, 6ft, etc) or if you would like it 4 inches short. If placed on a fence, it helps to make it 4" shorter so that the bottom does not touch the ground and risk getting damaged by lawnmowers, weedeaters, etc.** 90% Black Privacy Wind Screen is excellent for tennis courts, privacy fences, wrought iron, gates, yard fences, and baseball fields! Raw Material: High density