Greenhouse Hardware & Accessories | Johnny's Selected Seeds

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Customize your greenhouse or high tunnel with high-integrity hardware. Choose a Poly Latch system to secure plastic to supports without the hassle and degradation issues of furring strips. Roll up sidewalls with more ease, make your tunnel mobile, or install a second layer of film or plastic. Johnny’s carries trial-tested greenhouse hardware products, whatever your needs.

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17 Products

Snap Clamps for 3/4" EMT or 1/2" PVC Hardware & Accessories

Snap Clamps for 3/4" EMT or 1/2" PVC

Quickly fasten row covers to low tunnels.

Snap Clamps for 1" PVC or Chain Link Fence Top Rail Hardware & Accessories

Snap Clamps for 1" PVC or Chain Link Fence Top Rail

Quickly fasten row covers to low tunnels.

Cross Connectors – 2 Count Hardware & Accessories

Cross Connectors – 2 Count

Save time, money and make structures stronger.

Poly Patch Repair Tape – 6" Hardware & Accessories

Poly Patch Repair Tape – 6"

For everything from small patch jobs to splicing large sheets together.

Snap Clamps for 3/4" PVC or 1" EMT Hardware & Accessories

Snap Clamps for 3/4" PVC or 1" EMT

Quickly fasten row covers to low tunnels.

End Rail Clamp, 1 3/8" – 10 Count Hardware & Accessories

End Rail Clamp, 1 3/8" – 10 Count

A very versatile piece of greenhouse hardware.

Ground Post Driver Hardware & Accessories

Ground Post Driver

Prevents ground posts from deforming. Fits into 1 5/8" ground post.

Brace Band, 1 3/8" – 20 Count Hardware & Accessories

Brace Band, 1 3/8" – 20 Count

For securing the ends of collar ties and angle braces to bows.

Poly Latch Channel – 8' Hardware & Accessories

Poly Latch Channel – 8'

Convenient system for securing high tunnel coverings.

Truss Support Kit High Tunnel Kits

Truss Support Kit

Bobcat High Tunnel Kit Accessory

Doubles the strength of the greenhouse.

Poly Latch Wire – 4' Hardware & Accessories

Poly Latch Wire – 4'

Convenient system for securing high tunnel coverings.

Automatic Ventilation Kit High Tunnel Kits

Automatic Ventilation Kit

Bobcat High Tunnel Kit Accessory

Thermostatically controlled venting system.