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.

Poly Patch Repair Tape – 6" Hardware & Accessories

Poly Patch Repair Tape – 6"

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

Cross Connectors – 2 Count Hardware & Accessories

Cross Connectors – 2 Count

Save time, money and make structures stronger.

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.

Poly Latch Channel – 8' Hardware & Accessories

Poly Latch Channel – 8'

Convenient system for securing high tunnel coverings.

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.

Ground Post Driver Hardware & Accessories

Ground Post Driver

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

Poly Latch Wire – 4' Hardware & Accessories

Poly Latch Wire – 4'

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.

Automatic Ventilation Kit High Tunnel Kits

Automatic Ventilation Kit

Bobcat High Tunnel Kit Accessory

Thermostatically controlled venting system.