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Snap Clamp HD
These fittings are all to fit 20mm PVC reticulation pipe, obtainable from hardware and irrigation outlets.
20mm is the internal measurement. It is roughly 27mm outside diameter.
Snap Clamp Heavy Duty
$2.95 each
These are most useful for fastening GrowCover where it is more permanent, as they are more difficult to remove.
26 in stock