Agra Lock: The patented poly fastener developed by John Pound, 
president and founder of Agra Tech, is for attaching polyethylene or shade fabrics for all greenhouses. 
Agra Lock features the best locking properties found in any poly fastener on the market today. Our high quality standards are met by a continual quality assurance program to verify extrusion dimension specifications. This standard insures the poly is tight and strong in its holding qualities while not so tight as to cut the poly/shade material.

Hat Splice Extrusion: Features double Agra Lock extrusions on a sturdy 3 1/2" base with the strength to span 6' or more. Use at the eave or wall to splice poly or join the roof with an opening wall.

Agra Splice: A double Agra Lock extrusion  to splice roof poly on long houses or on end arches to make the transition from roof poly to poly end wall. Agra splice must be attached every 12" on center to an arch or other continuous piece.

Gable Extrusion: Provides a transition from poly roof to rigid glazed gable end walls. Agra Lock extrusion holds the roof poly and there is a niche for the gable glazing. Gable extrusion can be arched and punched for your house or in straight pieces.
If you are purchasing gable extrusion for a non-Agra Tech arched house please provide the length and rise of the arc.