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Home > Greenhouses, Tunnels & Components > Greenhouse Components
Building a caterpillar greenhouse tunnel?
We have great parts!
- inside connection sleeves for 1-3/8" fence rail (other sizes available, check the information side of the site, Tube Fittings)
- tubegrips (AKA snapclamps, etc) to attach the poly (32 mm for fence rail)
- heat-saver greenhouse poly, durable and great to grow under!
- repair tape
The BEST is the wire straps (1-3/8" X 1-3/8") to attach a horizontal run of fence tube to your bows. Wire straps make a FAST, firm connection without drilling (and weakening) the arch.
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3-hole connection plate
3-Hole Connection Plate
Price: $2.75 plus tax(es)

1 1/2" X 4 1/2" X 3/16".

Round holes are 5/16" diameter, the center hole is 9/32" X 9/32".

Versatile plate used for splicing baseboard lumber, gable framing, and custom applications.

more info
door handle, sliding door hardware
Door Handle
Price: $4.50 plus tax(es)

Easy-use door handle for sliding doors systems.

Includes 2 self-drilling screws for installation (screws are Canadian made with exceptional durability).
more info
caterpillar greenhouse tunnel part
T-Straps, 1-3/8"
Price: $11.50 plus tax(es)

Make a firm right angle connection between 2 pieces of 1-3/8" (fence rail tube)
Use to connect purlins to end bows.
10 per order.

Supplied with 3 self-drilling screws per strap (screws are Canadian made with exceptional durability).
more info
caterpillar tunnel
Inside Connection Pin, 1"
Price: $12.50 plus tax(es)

Inside connection pin, for 1" OD (16 or 18 ga.) tube. The center is raised to keep sharp tube edges away from the poly.
4-7/8" long
10 per order.
more info
caterpillar tunnel
Inside Connection Pin, 1"EMT
Price: $13.25 plus tax(es)

Inside connection pin, for 1" EMT.
4" long
10 per order.
more info
caterpillar greenhouse tunnel part
Omega-Straps, 1-3/8"
Price: $13.25 plus tax(es)

Attach wood and other flat surface materials to 1 3/8 tubes.

10 per order.

Supplied with 1 self-drilling screw per strap (screw are Canadian made with exceptional durability). Hardware for feet supplied by customer.
more info
caterpillar tunnel
Inside Connection Pin, 1-3/8"
Price: $13.50 plus tax(es)

Inside connection pin, for 1-3/8" fence rail, the center is raised to keep sharp tube edges away from the poly.
5-1/5" long.
10 per order.
more info
Drill less Brace Pin, 3/4", 19mm, tap in brace pin.
Brace Pin, 3/4"
Price: $13.60 plus tax(es)

Create a hole at the end of 3/4" conduit tube without drilling.
Simply tap them in with a hammer - will not come out, ever!
Avoid the difficult job of drilling holes into round tube.
20 per order.
more info
greenhouse pipe connector, plastic greenhouse connector, wire strap
Wire Strap 1" X 1"
Price: $14.00 plus tax(es)

Wire straps (spring steel) tightly connect tubes at right angles and other angles. 20 per order.
These straps can be used to connect 3/4" X 3/4" PVC and PE pipe.
more info
caterpillar greenhouse tunnel part
Omega-Straps, 1-5/8"
Price: $14.25 plus tax(es)

Attach wood and other flat surface materials to 1 5/8 tubes.

10 per order.

Supplied with 1 self-drilling screw per strap (screws are Canadian made with exceptional durability). Hardware for feet supplied by customer.
more info