Poly Lock Channel and Spring Wire work together to create the best greenhouse film fastening method on the market. These 6 ft. pieces of single aluminum channel come with the associated Spring Wire, and are designed to secure Greenhouse Plastic, Insect Screen, Shade Cloth, or Two Layers of Greenhouse Plastic directly to your greenhouse hoop frame or end wall. Simply install the Poly Lock Channel and wiggle the wire back and forth over top the material you are installing and into the channel. 

Unlike using wooden batten strips to secure greenhouse coverings, Poly Lock and Spring Wire hold the plastic in place without requiring holes to be drilled through the plastic itself to secure. This hardware:

• Does not damage the plastic over time
• Can be screwed directly to metal using Self Tapping TEK Screws
• Can be easily drilled at appropriate spacing and secured to lumber
• Bends to the shape of your hoops to allow for easy install
• Spring Wire holds the greenhouse coverings firmly, but reduces the pressure on the coverings at the point of contact
• Spring wire is easily removed, which allows covers and plastic to be removed, and used again 
• All units come with both a 6 ft. piece of Poly Lock Channel, and the associated pieces of Spring Wire (in 4 ft. pieces)
• Among the best per linear ft. price on wire AND channel anywhere in the industry
• Our Spring Wire is among the heaviest gauge Spring Wire in the industry