Bootstrap FarmerSnap On Clamps, 3/4 inch 100 Pack, Row Cover Clips for Greenhouse Plastic Shade Cloth Attachment - PVC Pipe or EMT Conduit Clamp

I tried using the 3/4" clamps made from PVC and they were flimsy and wouldn't hold my shade cloth in the wind. I even tried putting one on top of the other which was better but after one season of use they started to deteriorate and became useless. These are made from ABS and have a metal clip for reinforcement on both ends. The clamps appear to hold tight without the metal clips and its actually necessary to remove the clips to put them on over shade cloth. Maybe not if you're installing greenhouse film as it is thinner than shade cloth. These look like they will last longer than one season.

I bought these to hold the 4 mil plastic onto the pvc poles that I am using to cover my plants for the winter. They have withstood the winds and were fairly easy to use. A few of them were tight and difficult to put over the pvc pipe, but we pre-stretched them on a small piece of pvc pipe and were able to easily put them onto the plastic over the pvc. So far, all is well. I would recommend these clamps for this purpose.

These have been awesome and easy to get on quickly! I am attaching to 1/2inch conduit and the fit is perfect with my lighter and thicker row covers. I know my row covers are not going anywhere now and my plants are safe with these on! These held with no problem with 4inch of wet spring snow, strong winds, and even a hail storm thus far! I have put them on and removed them multiple times now and they have not lost the ability to hold. They are harder to remove, but I figure that is a good thing. I believe we will get multiple seasons out of these clamps. Quality product that is worth the money.

I bought these for a low tunnel that I was constructing out of 1/2 inch EMT (metal conduit) 10 ft in length and a plastic covering. I had tried unsuccessfully to keep the plastic attached to the frame by using a combination of spring clamps and heavy rocks. But just wound up with torn or unattached covering. These Snap-on Clamps fit onto the EMT perfectly. When you snap one on, it is secure and will not be dislodged easily. But if you need to adjust it's position, Just lift at one end and then proceed to remove the clamp. The springs are pretty strong and I could see where some people may need some assistance with prying up one end. I am ordering two additional packs today to construct another low tunnel.

These things are amazing. The 3/4" snap on clamps are a perfect fit for the 1/2" pvc pipe in using for my mini hoops. I'm using these to keep row cover and/or plastic (depending on current weather conditions) over my beds and they keep everything locked in place. I've tried other versions of this product and clamps and my frustration with those options led me to these - they actually work. Highly recommend!