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1/2 in PVC Low Tunnel Hoop-To-Ridge Cross Clip
A snap-on cross clip that joins a 1/2 in schedule 40 PVC ridge pole (21.3 mm OD) to the crown of each 1/2 in PVC hoop in a garden low tunnel. The two pipes sit at right angles with no glue or drilling. The ridge pole snaps into a C-ring with an 18 mm mouth, and the hoop presses down into a 21.7 mm U-cradle with a 19 mm throat. Two 4 mm zip-tie tunnels under the cradle let you strap the hoop down so wind can't lift it out. The part measures 30 x 59 x 25 mm.
1/2 in PVC Row Cover Hoop Snap Clip
A 40 mm-long C-clip that snaps over 1/2 in Schedule 40 PVC hoops (21.3 mm OD) and holds frost cloth, insect netting or greenhouse film tight against the pipe. The 22 mm bore leaves room for the fabric, flared lips help it snap on, and a rear fin with a 6 mm eye takes twine or a sod staple to tie the cover down.
Garden Bed PVC Hoop Mount Bracket
Screw-on bracket that holds a 1/2 in schedule-40 PVC hoop (21.3 mm OD) vertically against the inside face of a raised-bed board, so row cover, shade cloth or frost plastic can go up and come down without re-drilling the bed. The 22.0 mm cradle snaps the pipe past a 20.5 mm lip, a 23 mm end block stops the pipe sliding down into the soil, and a pair of 5.5 x 3 mm slots through the arms take a 4.8 mm zip tie for wind. 84 x 38 mm footplate with two 5.5 mm holes at 66 mm centres for #8 or #10 wood screws (or M5); print two per hoop.