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 1/2" EMT Hardware & Accessories

Snap Clamps for 1/2" EMT

Quickly fasten row covers to low tunnels.

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.

Poly Patch Repair Tape – 4" Hardware & Accessories

Poly Patch Repair Tape – 4"

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

Poly Patch Repair Tape – 6" Hardware & Accessories

Poly Patch Repair Tape – 6"

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

Poly Latch Wire – 4' Hardware & Accessories

Poly Latch Wire – 4'

Convenient system for securing high tunnel coverings.

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.

Cross Connectors – 2 Count Hardware & Accessories

Cross Connectors – 2 Count

Save time, money and make structures stronger.

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 Latch Channel – 8' Hardware & Accessories

Poly Latch Channel – 8'

Convenient system for securing high tunnel coverings.

Ground Post Driver Hardware & Accessories

Ground Post Driver

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

Sidewall Hand Crank Hardware & Accessories

Sidewall Hand Crank

Quickly adjust tunnel sidewalls and hold them at desired height.

Automatic Ventilation Kit High Tunnel Kits

Automatic Ventilation Kit

Bobcat High Tunnel Kit Accessory

Thermostatically controlled venting system.