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5/16" Grade 5 Carriage Bolt
Extra strong Grade 5 carriage bolt to make connections throughout your greenhouse frame.
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1/4" x 1" Grade 5 Carriage Bolt (100 box)
Easily secure your double wirelock hip board using these 1/4" carriage bolts. The bolt head fits into the center channel on back of the double wirelock base and then secures onto a pipe strap around the bow tube.
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#14 Self Tapping Tek Screws
#14 Self drilling stainless steel tek screw with #4 sharp point.
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Cross Connectors
Unique, 2-piece aluminum connector for connecting pipes at 90 degree angles without drilling.
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Side Clasp Roll Bar (12')
Posi-Clasp 2" OD aluminum Side Clasp Roll Bar is the "all-in-one" roll bar. This roll bar can be used on curtain systems up to 200'. Works great with Roll-Lock. Use Zig-Zag Wire (not included) to clasp one or two layers of curtain material into the built...
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Aluminum Rope Hooks (pack of 25)
Aluminum Rope Hooks insert into wirelock without fasteners. Open hook for 1/4” rope, to hold roll up sides in place. Secure with 1.5" #12 tek screw for extra security.
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8' Roll Bar Cap
Securely holds single or double layer plastic to 1.315" OD. roll pipe. Fasten with #12 x 1" Tek screws every 12"
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1/4" Polyester Rope (350' roll)
1/4" Rope NeoBraid Black 100% polyester for roll up sides. Made in USA.
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Woven Greenhouse Plastic For Roll Up Sides (6' wide)
6' Solarside Reinforced Poly, 6.8 oz, 87% Light transmission. Sold by the foot. Perfect for creating long-lasting roll up sides that do not need to be taken apart every time you need to replace the plastic on your greenhouse. Save on long term...
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Univent Automatic Opener with Hardware to mount to shutter
Ken Bar automatic solar vent opener. Vents 30" and under can be opened by one Ken Bar opener. Vents 36" and larger needs 2 per vent. Can be adjusted to open at between 60°– 70°F. Fully open at 86°F. Lifts up to 33 lbs. Wax...
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Double Wirelock Base
Commonly used as the "hip board" at the the top of roll up sides, eliminating the need to run a supporting board with single wire lock base. Requires one Aluminum Splice Plate for each stick to join pieces together.
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Single Wirelock Base
This greenhouse plastic fastener system works with shade cloth, insect and bird netting, etc. ZigZag / Wiggle wires lock the material in the WireLock channel. (ZigZag wire wire sold separately). Can be used to splice poly. Can be formed to the top of...
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Twisted End Wall Bracket
Used to attach end wall framing to the gable end arch. Works with any wood or metal square tubing end walls. Order brace bands to match your frame tubing size.
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Ground Post Pounding Cap
Machined ground post driving cap. Use to prevent deforming of ground post tops.
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On Sale!
Poly Patch Tape
A rugged patching tape that is perfect for mending greenhouse rips and tears. Clear, polyethylene tape with a medium tack acrylic-based adhesive with a white poly coated release liner.
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Aluminum Shutter Vent
Whether you are looking to retrofit an existing greenhouse or build a new high tunnel from the ground up, these aluminum shutter vents will provide much needed ventilation for you crops. They can be manually opened and closed or set up with either and...
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Roll Up Side Bundle
The Roll Up Side Bundle is a complete greenhouse and high tunnel sidewall ventilation package designed to improve airflow, reduce heat buildup, and simplify greenhouse ventilation installation. This bundle provides the essential roll up side components...
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Wiggle Wire / ZigZag Wire (bundle of 50)
For use with aluminum extrusion wirelock poly fasteners. Our ZigZag wire is made from .085” diameter, heavy duty, stainless steel spring wire, double- tempered to allow for a better return to original shape. Compatible with our other...
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WHY CT GREENHOUSE?
We’re farmers too — which means we understand what goes into selecting, building, and maintaining a high tunnel. Our team is always on call to help you with advice every step of the way.
Intuitive design makes for fast assembly
Fast shipping and easy delivery
High-quality products from an NRCS-approved vendor